The less you can take to the dorm, the better. Only the essentials and a few things to make it cozy.
It never ceases to amaze me what slobs my DD's roomates were. Good thing she had so little with her or it would have gotten lost in the shuffle.
Don't buy things just 'cuz your BFF has it or it is the newest thing or color. Really think about how you will use it, how long will it last, is it worth the price, will you be able to re-sell after school or will you take it to your first apt., things like that.
We bought DD a dorm fridge on clearance at Lowe's because it had a scratch on it, a small microwave, sturdy hangers, two nice warm blankets (you don't want to take your quilts there do you?), a trash can, a locking file cabinet, some plastic storage bins; a couple of cheap plates, bowls, cups, & cuttlery, so she could eat her Ramen noodles and whatever else kids eat in the dorm. She had the plastic shoe boxes to store the snacks and food in so bugs couldn't get in. If she had it to do over, she would have purchased a rolling back-pack. Makes it mush easier to take to classes and easier on your back and shoulders. She took just enough stuff we were able to make it in one trip at the end of the year to haul back home.