I got a bunch of these over the last Steam sale with the coal and whatnot. I can't use them and they're expiring in early March, so you can have them!
1 per person, send a message to perfidious_sinn...or Perfidious Sinn...or go here. http://steamcommunity.com/id/perfidioussinn
I don't know how this stuff works really.
What I've got:
-33% off a Valve game
-10% off a Valve game
-50% off any Nordic Games...game -50% off Blocks That Matter -50% off Drakensang