Delayed Onset Muscle Soreness

I had some real sore legs after a trip to the gym. I could barely make it down a flight of stairs the next morning. Yikes. I'm sure this was just a case of DOMS but I've also been having some pain in my hips. I suspect that my entire core (glutes,lower back, etc.) are tight but I'm not sure how to diagnose this. I've done some stretching and plan to incorporate regular stretching or yoga into my schedule. If that fails, I'm gonna try screaming "Out Satan!" at my ass. Could work. ;-)