Sometimes (especially when you do this stuff for a living) it is hard to get inspired to code something. So to get inspiration I have a few things I like to do, everyone post their own and lets all get inspired!
[url="http://www.halfbakery.com/"]HalfBakery[/url] has a lot of useless ideas - I sometimes just spin through there to get brainstorms.
Now that flipcode has sadly bitten the dust, gamedev.net has just started their own [url="http://www.gamedev.net/community/forums/gallery.asp?forum_id=62"]image of the day gallery[/url], which already has a few inspiring images.
While I find IOTD things interesting, I can't say I've ever been inspired by them. It's more depressing usually because I'll see something I'd like to do, but it doesn't fit within my own project in any way.
Actually my source of inspiration is usually spending several hours doodling something that I thought up as a meaningless phrase or similar idea and trying to draw something nice or substantial as the end result. Though I've found it's often quite tiring to spend most of your waking hours being productive and work+projects+drawing doesn't leave much time for anything except a little bit of playing games and some eating and sleeping.
Listening to some Heavy Metal is nice for me - Especially if it's a new discovery or favourite band of mine. I also sometimes just sit around and think of ideas. I tend to think WAY too big (NO not MMO games [:P] I don't like em...) so the challenge for me is to shrink the ideas down to managable sizes. Now if only it were possible to squeeze MORE hours into the normal day...
Oh... can't forget this suggestion - comedy [:D] Watching funny stuff can inspire cool ideas... Billy Connelly for example. I tend to have a whacked sense of humour so coming up with funny ideas can sometimes inspire new game ideas and all soughts of random stuff.
For quick inspiration I checkout the current [url="http://pouet.net/toplist.php?type=prods&platform=Windows&x=19&y=12&prod…"]top productions[/url] on [url="http://pouet.net/"]pouet.net[/url].
Also, [url="http://www.flipcode.com/"]flipcode[/url]'s [url="http://www.flipcode.com/iotd/"]Image of the Day[/url] gallery is very nice to see what other people have come up with.