With Steam Sales (at least in my case) come friendly gifts in the form of "Oh, that two-pack is a deal! {Steam Friend} wants this game? Then, here's my copy!" and "A $2 game? [Visits store page] Hmm...not interested. But, looks like someone else is!"

So, start making friends, and updating your wishlist because you are gonna get gifted...unless you're like my brother who's wishlist was literally just "Dragonball Xenoverse".