A free coupon for someone who will use them:
50% Cogs, Gemini Rue, Oddworld: Abe, Wings of Prey
25% Sega, Squeenix, Valve
Free guest pass for Killing Floor, for anyone already on my friends list or doing a trade. I think it lasts a day or three. That also includes a holiday achievement you might be able to get with it.
Games to swap for other games:
Dungeons of Dredmor
Storm: Frontline Nations (Man Raised By Puffins a few posts above'd be cheaper)
These three extras from a bundle you can still purchase, indiegala.com:
Zombie Shooter 1
Zombie Shooter 2
And a few coals too. No luck with my crafting... a $1 game I already had & gave away, and a 50% off another $1 game I already had.