I know that it is best to do a rotation for several weeks and then change it up so your body doesn't plateau/adapt. However, I'm wondering if the order in which you do your workouts needs to be different week to week as well. For example, does your body adapt to always doing back/biceps on Mondays, legs on Wednesdays and chest/shoulder/triceps on Fridays? I have limited Cathe DVDs so I do the same workouts for each week of the current rotation (S&H rotation, Pure Strength rotation, etc.). I like to make up a monthly workout calendar ahead of time (that way exercise is more like an appointment that I can't miss!) and I just realized I am doing the exact same workout every week this month. It is definitely easier planning it that way, but I want my workouts to be as effective as possible!