Perhaps taking a page from the Team Fortress 2 Valentines from last year, Valve's offering four sets of gift cards — with characters from TF2, Left 4 Dead and L4D2 — that are simply a holiday must.
They're slam-packed with in-game memes — Pyro's speechlessness, Demo-Man getting lit on egg nog and Spy romancing Scout's mum under the mistletoe. Each set is $US15.95 — a steep price to confuse your family, or a bargain to wow your friends. Your choice. 2009 Holiday Card Collection [Steam via VG247]