How would you spend it? Remember Groundhog day when he was stuck in that infinite loop? What's something you want to do but feel like you don't have the time to?
I love learning.. about everything. I would use the time to learn Calculus thoroughly (haha, to prepare me for my test on Tuesday) and spend time alone with my thoughts. I'd probably spend a lot of time reading and watching movies. There's only so much you can learn on your own but ideally I'd try to learn dancing and art. I'd take the time to drive to places and just take in the scenary.
What would you do?