Buy one pre-owned game, get one free at GameStop

TL;DR: GameStop is holding a buy-one-get-one sale July 23 only on pre-owned PlayStation 3 and Xbox 360 games — if you still use those consoles, you can check out the sale here. A lot of gamers have moved on from our old consoles, spending most of our time with our PlayStation 4s and Xbox Ones while preparing for the next generation of systems that'll be coming out quite soon. But others are still hooked on the nostalgia — if you're one of those people who often boots up your PlayStation 3 or Xbox 360, it's your lucky day. Today only, GameStop is offering a buy-one-get-one promo on pre-owned PS3 and Xbox 360 games, giving you the chance to save a lot of cash on titles you might have missed out on when they first released.  Read more...More about Gamestop, Xbox 360, Playstation 3, Mashable Shopping, and Entertainment