So, recently, a person I know has gotten started on Steam, but the problem is, they've only got a single game. I want to be nice and change that. I know people frequently end up with spare keys from indie bundles like the Humble Indie Bundle, because, well, they already have one or two of the games that come on them. So, I'm willing to trade stuff I have for any spare keys (except for Nightsky). That stuff can be various TF2 items like Refined and hats, Steam trading cards, and other stuff I might have laying around my inventory. If you've got a spare key gathering dust, I'll trade stuff for it.
Edit to clarify because I forgot to: Looking more for low-system-requirement indie games. Cave Story+ for example.