That righty-tighty nonsense doesn't help you with threads, because they have a circular motion, not a linear left-to-right motion. The proper way is to use the Rule of Thumb. Point your thumb in the direction you want the bolt or nut or whatever to go, and your fingers will show you the direction you should turn it. If it's a right-hand thread (as most are), use your right hand. If it's a left-hand thread, use your left hand.