New sale from IDW on comics related to games; 18 collections for $2.99 to $5.99, ends 10/19/15, includes things like Dungeons & Dragons, Angry Birds, and Silent Hill.
https://www.comixology.com/IDW-Game-Sale/page/8445
The weeklong sale from DC is a great one; collections of a bunch of great Vertigo titles like Preacher, 100 Bullets, Hellblazer, Transmetropolitan, Y the Last Man, and American Vampire. They call it their Vertigo 101 sale and it ends 10/19/15. I guess I need to pick up some overtime; 101 $4.99 collections of some of the best that comic books have to offer.
https://www.comixology.com/Vertigo-101-Sale/page/8401