Once you receive the electronic gift card, you can redeem it in the DoorDash or Uber Eats app or their respective websites. Daniel is a Staff Writer for Lifehacker. He served in the U.S. Navy ...

Walmart is offering 10% off $100 and $50 Uber gift cards, and though it only saves you a few bucks, it's still basically a free ride — plus, you'd be spending that money eventually. With just ...