If it isn’t the odd smell in the changing room or the utterly tantalizing proposition of happy hour, then it might be the thought of inevitable post-workout aches and pains that deters one from visiting the gym. Many chalk it up to overdoing it while others see this as sign of growing muscle mass; yet no one seems to realize that they may be making some common mistakes while getting their sweat on (yes, tiny ones still count). So here are a few common gym errors to be aware of during your next visit.