| The default work-study option for freshmen is dining services, so you might want to take that into consideration as well. There are other jobs on campus that aren't work study--don't go into this thinking that just because work study was offered to you, that you have to take it. There's no requirement that I know of that says you can't work elsewhere if you're not working in dining services. Academic departments are great places, especially if you want to get a feel for a major before you commit. There are places in town, too, but most of those are waitressing-type positions--jobs on campus will be more flexible with letting you set your own hours.
As far as scheduling, keep in mind that a day at college looks nothing like a day at high school. Most people who I know (with the exception of science majors) have maybe two hours of classes on any given day (classes usually meet MWF or TTh). That gives you a lot more time during the day for a job shift, extracurriculars, and coursework. You learn how to manage your time very quickly (HINT: google calendar is your friend). | 
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