We could've used this yesterday when we were decorating the Cars 108 studio.

In case you haven't heard, we flipped the switch to Christmas music this morning, and Mike from NBC25/FOX66 mentioned how his wife was checking their Christmas lights with this cool little gadget called an LED light keeper.

You can check all of your Christmas lights with the LED Light Keeper, and it'll even diagnose which light is the problem on your string.

So, if you're like us and you stink at putting away Christmas lights but you're too cheap to buy new ones, you can get this and salvage all of your lights from last year.