I always begin with homemade cookies. One of my favorites to include are Candy Bar Cookies. Send a double-batch because you know that in college the vultures come out as soon as someone receives a care package. You want your student to be able to share with friends and have some left over to enjoy.
I use double-stick tape to attach some decorative paper to make the container just a little more festive (a care package is all about fun and surprise, right?).
For even more care package ideas check out my Pinterest Board.