Get comfortable working out problems on a dry erase board (I would also recommend purchasing a small one for your room). Not only are they great for group collaboration, but they also work exceptionally well for theory CS classes and math problems. While you can technically solve these problems on paper or a computer, being able to visualize everything at once and easily change parts is very helpful. Most importantly, many companies will also have you solve programming interview problems on a dry erase board, so practicing this skill with homework problems will prove beneficial. You can also spend some time working in conference rooms in Siebel (the cs building) or Grainger Engineering Library where they have whiteboards to use.