Valve coupons, Operation Flashpoint coupon, and some coal... Anyone want to trade?

I've seen a few people ask to trade here, so I figure I might as well try too. I have a few things up for trade on Steam, and I was hoping to try to spin my luck by asking anyone on Reddit to try to help me out here. I've been trying to expand my Steam library, but unfortunately I don't have any way to purchase online games (no cards). Right now I have this up for trade:

• %25 and %10 off any Valve game.

• %50 off Operation Flashpoint: Red River (the newer one)

• Single piece of coal.

Valve coupons are worth almost nothing, and unfortunately I got weak ones at it too. The coal isn't really worth much either, but I know there are people out there 1 or 2 pieces away from getting 7 pieces. The Operation Flashpoint coupon is probably the best thing I have. It takes about $20 off of the game. I also have a few more things from TF2 I'll give away look in my inventory and just ask:

• My TF2 inventory (I'm willing to trade anything except the earbuds)

I'm hoping to get either Limbo and Terraria. I've never played either of those games and I've heard a lot about them. Even if they were a penny each I wouldn't be able to buy them myself. All the games I currently have were purchased as gifts over the years or were from retail stores. If anyone is willing to trade, then thanks in advance!