I haven't read them all but I got a laundry basket full of the toiletries I'd need. She'll definitely need a good coverage bathrobe if she'll be in the dorms (most of us walked from the public bathroom to our rooms in a bathrobe, then got dressed in our rooms). She'll need a caddy for all her tioletries, flip flops (b/c, yuck, it's basically a public shower!), a couple towels and washcloths, shampoo, soap, razors and on and on. You get the idea. I remembered that gift and appreciated it more than some of the more "keepsake" gifts that really ended up in a box in the closet.
Also, maybe looks up some of the popular restaurants in the area she'll be at college (really any fast food or pizza joint) and get her gift cards. I remember being so broke it almost took all my cash just to hang out with my friends at the pizza place for food and a few drinks.
I also LOVE the IOU care package idea. It's so great to get packages and mail. Everyday you pass and check your mailbox hoping something is in it. And the college sweatshirt idea is great too - they are so expensive for the college kid to buy themselves.
I wish I knew someone close going away to college this year! So many great ideas!