I'd second retire@40's suggestion of making a list of all the things you've ever wanted to do. Surely there are things you've always thought would be "neat", but never had the time to work at them? Here's part of my list (I keep it on google notebook (
http://www.google.com/notebook/) so I can update it as needed). Btw, I'm a computer person, so a decent number of things on my list are computer programming related.
*DONE* Become a Scuba instructor
Learn Hapkido (white belt so far)
Forge swords
*DONE (badly)* Paint
Brew root beer
Learn Tai Chi
Get in shape
Grow Bonsai (In progress)
*DONE* Get an aquarium (salt)
Write recipe web program
Write library program (look into barcodes)
Breed moray eels (need at least 200 gallon tank)
Raise octopus (need at least 55 gallon tank)
Write a book
Make a Koi/Goldfish pond in a Greenhouse
Learn how to play bagpipes
Learn how to play the guitar
*DONE* Smoke good BBQ
Make wood bookshelves
Go sailing around the world
Walk the appalachian trail
Make a remote control battleship that shoots things
Make a board game
So anyway, that's a part of my list. I have cut plenty of things out that just aren't practical (IE, learning Mandarin.. while cool, I have too many other things on my list that are more interesting). The thing is, I know that if I'm ever bored, it's not for lack of things to do, it's just my mood. Often depression is confused with boredom. Then you need to address your emotions, instead of pretending it is a lack of things to do.