Good answer on the Avril thing, dude. lol
Morrone had the best answers so far, but I'm thinking purely in the interest of fun.
I'd want to finish all my writing too, but not before I do the following three things (assuming reality isn't a limiting factor):
1.) Go Super Saiyan, of course.
2.) Destroy every horrible jerk I've ever met in my life.
3.) Go and tell this particular girl that I have always and will always love her, and kiss her goodbye one last time.
Or...alternately...
1.) Do all of the above
2.) Find 7 Dragon Balls.
3.) Wish Shenron to make me immortal. lol