What exactly are you intending to do with your life? Are you planning on launching your own business or something along those lines, or in joining an already existing business? A suitable minor for business administration, I would think, would be something math-related as well. Writing and speech skills won't get you very far in business--most businessmen I've met have p-ss poor spelling and grammar. Evidently, it's not a very useful skill in that field, or else they wouldn't hold the positions they currently do.
I would recommend you take a few psychology courses as well--manipulating people is of utmost importance in business. There is a rhyme and reason to everything a business does, from the stacking of "impulse buy" items such as candy bars and bubble gum near the registers at a grocery store to the use of colours such as red and yellow in fast food establishments (these colours are thought to stimulate appetite) and aggressive advertisements constantly being aimed at the general public. It's a really cut-throat world, very structured and unscrupulous, which is why a lot of sociopaths and psychopaths flourish in business. The important thing to remember in business is: understanding without empathizing--in other words, exploiting human weakness, understanding how the human psyche works, what appeals to it, what abhors it, and ruthlessly exploiting this knowledge for your own ends and benefit.
I ask you these questions because it is important to know what exactly you are planning to do in the business world. If you wanted to advertise for business, getting a minor in English or taking supplementary courses in language or design would be of benefit to you. However, if that's not what you're intending to do, these things would hold little value.
As for generic advice regarding the experience overall:
1) Know yourself: as someone else has already stated, if you're early to bed and early to rise, it would be most convenient for you to take morning classes. Conversely, if you're a night owl, evening classes work best. However, some universities have policies forbidding first-years from taking night classes. Inquire before anything. Also, if you have attention issues, perhaps a 3 hour course is not the best idea for you--if the same course is offered in hour and a half chunks two times per week, take that one instead of the weekly 3 hr. course. Sometimes, however, this is not possible.
2) Know your professors: Read the syllabus carefully, paying close attention to the parts regarding class attendance, lateness policy, and assignment extensions. Some profs. don't give a flying f--k whether or not you attend their class so long as you do the work (they're required to tell you they do, but as the saying goes, actions speak louder than words). Others are totalitarian in the way they monitor attendance and will actually deduct grade points for excessive tardiness/absences, as was the case with my geography professor--although my writing was superior to that of all others in the course, my not giving a damn about attendance got my grade reduced--not that I cared, lol. Tardiness is a huge issue with some profs as well. This was the case with my World Civilizations II professor, who yelled at me once for being late. Others, however, don't really care--I was serially tardy for one of my prof's classes, and he knew my issue with getting up early, lol, but since my work was superior and I was seldom absent, he didn't really mind it. The same goes for assignment extensions--some profs rarely grant them, others have no issue with doing so as long as you give them a good reason and proof that you've done at least some work...
In addition to the basics, know your professors' personalities. Some professors are impressed when students point out fallacies in their lectures, or add more detail to them, therefore enriching the experience for all, while others get majorly offended if one dares point out the fact that their qualifications to teach a class at university level are dubious at best, and they'd be best served teaching at a level where their pupils' cognitive abilities would be below theirs (I suggest preschool or kindergarten at the highest). This was the case with my English Composition professor, who could barely read, struggled with spelling, and could not write a grammatically correct sentence to save her life. Even her teaching assistant expressed contempt for her. It is a professor's responsibility to master his craft--if the poor speller had been a mathematics prof. I wouldn't have thought any less of him. An English professor, however, should at the very least know the meaning of basic words without having to consult a dictionary.
2.5) Befriend your professors. They're easily the most interesting people you'll meet in your entire college experience, and most certainly the most valuable, both in terms of knowledge and usefulness. Being on good terms with a professor facilitates communication should you run across trouble in completing an assignment--they'll be most glad to help you, especially if they remember who you are. Moreover, they have the most interesting stories to tell, and possess some of the richest humour ever. You can afford to be their friend--aside from the much-needed references and opportunities such a bond can offer, there is the invaluable knowledge and the appeal of their personalities (and, in some cases, good looks). Some will even let you borrow their books--you can arrange a sort of tit for tat--you can allow them access to your own personal library so the entire affair will be mutually beneficial. Really--be nice to them, and they'll be nice to you in return. Although some of them are hard nuts to crack, their friendship is priceless. I don't advocate taking advantage of their trust, though--I can't think of any kind of person who would deserve that less than a prof. Liberally and ruthlessly take advantage of other students, prefects, deans, academic/counseling/writing center/library staff, campus squirrels, and whoever else your little heart desires if you will--but be sincere and genuinely kind with the profs.
Oh, yeah--only befriend those you actually like. Be on good terms with all for politeness' sake, but obviously there's no need to approach one whose expertise in a field is below your own, or one whom you really have nil in common with.
3) Know the point system. Some professors hand out a million assignments, each worth a pitiful amount of points, while others only assign two or three things per semester, which hold high point value. Obviously, it would be a poor idea to skip an assignment in the latter situation, but it would not be the end of the world if one was "forgotten" in the former. It also helps to know what the professor in question values--most are content to receive mindless regurgitation, but some actually want your thoughts on the material at hand.
4) Know the area: If the college you're attending is in the middle of nowhere, and you like to go out and do things (and can't afford a car or refuse to drive one and indulge in mindless American consumerism), it's probably not a good idea to attend that place. However, if the college is a stop in a public transportation system route, or if it is in the middle of a busy place, you'll seldom run out of things to do.
5) Know your surroundings: If you're content eating in a hall full of people making all sorts of noise and partaking in the most brainless antics, go ahead and eat during the "popular" meal times (at my school, these are 12pm and 5pm). However, if you like to digest your food cancer in peace, make sure to stop by the dining hall right before or after the busy times. Then, you'll ensure you have sufficient food stuff to satiate your appetite, and the necessary peace to enjoy it (and hear yourself think).
6) Know your preferences: Most colleges force their students to enroll in at least one extracurricular club, team, etc. during their first year. If you're athletic and like to be around people your age, team sports clubs would probably fit you best. If you're a solitary person like myself, clubs with the least amount of interpersonal involvement (i.e. the school newspaper or literary magazine) would be preferred. If you like to do stuff for free, make sure to enroll in all the free trips which are offered several times throughout the year. I went to the art museum last year and it was a total blast! Unfortunately, the success of said trips is entirely dependent upon whether or not other students want to go--there was a really awesome free trip to see mummies at a museum scheduled, but it was cancelled because most students preferred to go drinking/partying and be mindless trolls. Be warned and don't get your hopes up, in other words.
7) Know the curfews: If you want to go in and out of the building without being questioned Gestapo-style, make sure to conduct your business within the "open door" hours. Most colleges have a certain time of day/night when doors must be locked for the students' safety, and after said hour, a security guard has to allow your entry.
8) Know dormitory rules: Most universities, much to my dismay, do not allow candles or incense to be used for fire safety reasons. Therefore, I am forbidden from taking these items on campus. Similarly, other items (none of which I can directly remember) are forbidden, so make sure not to bring them. Some universities also have a no alcohol policy, which absolutely nobody follows (I know students who even have mini fridges stocked with alcoholic drinks, truly laughable lol), so if you must drink conceal your contraband well, and give them no reason to suspect you of any wrongdoing. Make friends with whoever is prefect in your hall, but don't get so close that they get the wrong idea about you and start pestering you whenever they see you--simply make the necessary connection to ensure their sympathy/priority action should some misfortune befall upon you.
That's really all there is to know. Keep your eye on the goal--you're in college to get a piece of paper which entitles you to a s--tload of debt and a slightly higher chance of landing a higher-ranking wage slave job. You're not there to make friends, save the world, etc. Get that paper and skadoodle out of there as soon as possible.
Oh, yeah, obliterate all opposition, too.