One of the best and worst parts of being a regular gym-goer is the sore muscles that often accompany a hard workout . For many people, sore muscles are a sign the workout was a success but if you don't want to spend days grunting as you walk up the stairs, you'll need to find relief. While almost anyone would be happy to get a weekly massage, it's just not in everyone's budget. Luckily, Walmart's Black Friday sale recently went live with an amazing deal on everything from mass...
