The Best trade

Entire dota 2 inventory (I seriously had shitloads of stuff) -> Killing Floor (before bundle, waaay long before) -> Sleeping Dogs -> Analogue: A Hate Story + Something I don't remember. Steam gifts all the way of course

Arma 3 Alpha Lite for Darksiders or Company of Heroes 2 (Beta only) for Tripwire Bundle (from HiB) and then the Killing Floor bundle for Don't Starve.

10 euros for some portal 2 foil card

i started from a single bundle game and now i have hitman absolution, sanctum tradeable and other games. Pretty good

I traded a robocrate when they were new for the "Ravaged" game. I really like it, but there are few players. Anyway I got to play with the devs and some beta testers and they are adding Zombie mode, and devs are really nice.

Serious Sam 3 for Bioshock 1 & 2

3x Dota 2 for 2x MW3...
Great deal, horrible game.