You're sweating, panting, and shaking a little—it was a great workout, but you're exhausted. Make sure you keep your post-workout habits healthy so that you get the most from your efforts. Too tired to stretch afterward? Don’t chicken out. Your body needs those few minutes of stretching to release built-up lactic acid from the muscles. Want more inspiration? Read on as eBay shares a list of the worst things you can do after a workout.