Steam Cards.

Give them away, sell cards.

Sell them on the Market.

Give them away to us =) I would be very thankful =)

Sell or give them away for us :3

Sell them. You can get some money for that.

Sell them -> buy more games from it.

give half of them to the first person who says banana.

banana.

Start a giveaway of sell them in the market.

Sell them or give them away here :)

So I see you're new here.
First things first, the PSA on threads such as yours is that you're not allowed to make such threads, cause it will cause begging.
Second, sell them and make some money for yourself.

Trade them to people for games

Have: Just Cause

Want: all teh cardz!!!!one!1!

TRy trade for games or sell in market and make a few bucks and buy discounted games/dlc when on sale.

You could sell them on the market for some money or you could trade them for Metal in TF2 (around 0.33 per card) or you could just give them to your friends.

Sell the cards if you have no interest in it.

Sell them or buy all the cards to make a badge

Send few my way^^ I will be grateful:)

I too would be interested ;) However, honestly, I would just sell them on the market if you don't plan on making badges or just keeping a set for each. However, if you have full sets... craft them badge(r)s! More booster packs! ;)

Create second account for random shit, dump those cards