if i was you i'd pick a good routine, preferably one from one of these guys like a 5x5 or something and stick w/ it. Small changes such as the order of what you do, etc are good but i think my worst mistake is changing my routine too often. I always pick something and don't give it enuff time to see if it works before i change to something else. I really believe the science in some of these lower volume periodized routines and think they could be very beneficial in the long run.