I recently purchased the warrior wellness dvd and have been going through the beginners routine. I realize it only takes 15-20 minutes or so but I have about 40 minutes per day to work out so it takes about half my workout time. Is there a way to shorten the time a little? Are there some exercise that are more important or is there some redundancy that can be reduced? Would it make sense to focus on problem areas or maybe rotate exercise doing some one day and others the next?