If you're looking to offload an Xbox One or PlayStation 4, GameStop has some good news for you. The retailer is temporarily upping the amount of trade-in credit on those consoles by between $40 and $80, depending on the model you have.

Here's the rundown on the old trade-in values versus the new. That extra $80 for a 2TB Xbox One Slim could go a long way toward an Xbox One X, PS4 Pro, or Nintendo Switch.

But because all good things must come to an end, the trade-in value increase is only in effect between now and April 22 (which is an extension of the original announcement). So hurry up and unplug those console you're not using.

"We're delivering on our promise to give customers better trade-in deals they can't refuse on top products--the right products with the right deals. We're not talking pocket change either," said Bob Puzon, senior vice president of merchandising for GameStop. "Who doesn't want to earn an extra $40-$80 on video game hardware that's just sitting around the house collecting dust?"

GameStop also accepts games and other kinds of hardware you might have lying around, including mobile phones, tablets, and electronics accessories. It even takes broken or damaged items, though obviously that affects the amount of credit you'll receive.