I only have the Summer Getaway trading cards from voting and buying stuff. I have been so very tempted to play games for the cards, so I can make them hundreds you mentioned above, but my stupid laptop cannot play games any more. For some reason, my laptop keeps overheating during games - even during the first Half-Life game!
I found I could play Team Fortress 2 on the lowest settings for about 20 minutes before risking the machine shutting down, and this was during the winter! It's 29°C in this room right now, I'm not going to risk playing anything that doesn't run in DosBox.
At first I thought it was only Valve games, but the first Red Faction game did the same thing, and eventually so did Deus Ex and Undying. These are games that used to work perfectly a couple years ago. I spent months in 2011 pissing about in Deus Ex, for hours at a time! What a shame.
Typing this has made me realise, I could just play those simple games I try to avoid to get the cards. And then maybe think about clearing out the dust from my laptop fan, because I've just found this:
http://www.intellcity.ru/content-2/service-manual-notebook-Samsung/service-manual-samsung-np-r710.pdfThat was not on the internet last year!
I now have two Football Manager Summer Getaway cards.
http://steamcommunity.com/id/chekovsulu/gamecards/245070/