After you're done playing a game on Steam, there's an annoying popup that appears advertising other Steam games. I'm perfectly capable of finding my own games that I would like to play. Is there a way to disable this popup?
It's actually quite easy to disable them. In the Settings window, go to the Interface tab. There's an option at the bottom to disable these notifications.
I do believe that this is an option they added in semi-recently, because I've been using Steam for a long time and I've never seen it before a few days ago.