Music - I listen to it, play piano, classical guitar, electric bass, sing, and lead a small band in my church.
Reading - fiction, non fiction, books, magazines - for learning things, for fun, for getting away from it all in my mind, but no romance novels please.
Cooking - because it's important for your health to be in control of what you eat - and because it's fun
Working in the yard - because I have to but also because it is satisfying.