Yoga mats are one of those things you probably don't want to think about reusing since it's covered in your sweat, but if you don't want to toss it out, the writers over at Health recommend repurposing it as a non-slip rug pad.
Photo by A Girl With Tea.
The nice part about this reuse is you don't need to do anything more than cut the old yoga mat down to size to make use of it. Better still, if your rug is larger than the yoga mat, you just need to throw in underneath and you're good to go. This will only work for thinner, sticky yoga mats, but check out the full post over on Health for a few more ideas to keep the yoga mat out of the dumpster, including cutting it up into mouse pads and more.