I'd definitely get caught up on my reading. I'm like several of the others on this board...I have shelves full of books just begging to be read, but I just don't have the time! (Or rather, I do have the time, but I choose to do other things with that time...such as spend time here...)
I'd take up music again...buy a new bass guitar (since someone stole my bass
) and teach myself how to play slap bass.
I'd spend more time outside, out in nature.
I'd write more - in my journal, poetry, short stories.
I'd devote more time to finding a new job...it's so much easier to put that off by playing around on the computer and just staying unhappy at the job I'm at!