GameStop offers four used games priced $4.99 or less for $10. (Add four games to your cart to see this discount.) Where available, choose in-store pickup to dodge shipping fees, which start at $5.99. That's a savings of at least $10. Save on games for a range of consoles, including PlayStation 4, Xbox One, PlayStation 3, Xbox 360, Nintendo Wii, and Nintendo DS. Deal ends February 11.
If you're feeling vintage, you can even save on a couple games for the dearly-departed Dreamcast, or revisit the original PlayStation for a few rounds of Tekken 3 or another run through the first Metal Gear Solid.
The dollar store is the most amazing place to find bargains for certain purchases. Yes, even pregnancy tests.