Some of gaming fandom takes a bit of effort. You try to support developers you like, you get in debates about the merits of certain game features, you try your best to play a game you may not like a whole lot right this moment in the hope that it'll get better. When I game as part of a community, I'll try stuff I'd otherwise not, and when I'm taking someone else's recommendation it sometimes takes some work to accept something outside of my comfort zone.
 
What do you play when you can't be arsed?
 
I find that trying a round of Spelunky is a fun way to waste some time, even though the only goals we have left in that game are goals we make ourselves. I also spent a long time playing Tales of Maj'Eyal, although when I realized that I would lose my saved games when I updated to a new version (and my life suddenly changed rather dramatically) I sort of left it behind (though another roguelike, the space exploration game Prospector, I recently tried out again). The Wager is fun, but still needs bugs worked out; Solium Infernum is great but takes a while (the demos of Armageddon Empires or Sixgun Saga are a lot more pick-up-and-play for me).  For an uninvolved but fun diversion, I'll play that pinball game Space Cadet (still one of my favorite video pinball games ever) or ROM Check Fail.
 
I'm willing to bet as I discover new games, or finally upgrade my machine, that I'll find a new retinue. Given that GOG's doing its usual holiday promotional deals odds are I may buy something from them. But right now, these games seem to be in repeat-gaming my comfort zone. You?

I usually go back to competitive multiplayer stuff when I'm tired of trying to play whatever old/new game that has come my way. Right now, that means Team Fortress 2 and League of Legends, both of which are excellent ways to waste some time when I'm too defeated to play Dark Souls. Also fighting games. A lot of fighting games.

Lately I've found myself going back to The Binding of Isaac a lot when I can't be bothered with anything else. Team Fortress 2 also works wonderfully. Generally, anything without a story I could see working for me.

Games that I know very well, Banjo-Kazooie, Super Mario 64 etc.

Golf, I always go back to golf. I saw Super Swing Golf Season 2 for pretty cheap at a local store today. Even though I played it the day it came out and traded it in after 80 hours, I almost bought it again. 
 
Well, there's always my Tiger Woods series. But those anime golfers made me grin.

I don't really have one but plan to spend a lot of time playing some of the big games installed on my steam list and a little new one called SWOTOR

@ahoodedfigure: I played in the beta and felt like there was alot to like about the game. Granted there was some time where I felt underpowered for stuff but I will give it a try for at least a month. I wish I had been in the beta for DCUniverse because after a week I disliked that game but I like SWOTOR.

Resident Evil mercenaries is always something that I play to help get my mind off things whether its RE4, RE5 or the 3DS version. Its what i go back to when video games piss me off and make me want to give them up entirely, a few rounds of mercenaries mode always reminds me why i love gaming.

@ahoodedfigure: It actually was as a Sith Jedi that I had problems the shooting class was not too bad.

@ahoodedfigure said:

@Brians: I think it's pretty funny that they release near Christmas. I wonder if it's a demographic thing, where a lot people don't do a lot of Christmas stuff and just like to play games. Given some of my uncomfortable Christmases in the past I think I can understand! :)

@Hizang: You ever try Nuts and Bolts? I get the feeling I might want to track down a copy of that some day.

@Claude: One of my favorite games in High School happened to be a golf game in typing class. For some reason the idea that the game would wait for me to take a swing, and that there was a pleasant, manicured landscape around me made me forget I was supposed to be learning stuff.

I don't have a 360 any more, but i did have and played through it. Really good game, loved it especially the art style and music.

Best Xbox 360 exclusive game.

Unreal Tournament 2004 is always installed for when nothing new grabs my attention.