Ask HN: How should I spend this winter?

Hi, I lurk on HN very regularly, and have always been kind of scared to post anything because people seem so smart (to the point of intimidation).

Anyway, I'm a senior in college studying computer science and am about to begin the job hunt. I have completed two internships, but despite this I don't feel like I'm qualified for many of the job listings on here. I've been preparing for technical interviews for about 2-3 hours a day (reading Elements of Programming Interviews), but I don't know if this is actually helpful.

Does anyone have any advice on what the best strategy is? I have literally 4 weeks to burn and want to do the best I can.