Hi Joey....me again.  1) With the exercises series (ie: I am doing the 6-day).  Do they have to be in order.  Some days (leg days) are really long if I include the 20 min cardio I am looking at 1 1/2 hours.  Whereas some days like the shoulder day is half the time.  I will do my best to do in order but I don't always have 1 1/2 hours to do a routine.  I have flipped it around a few times.  2) And with the cardio.  Do you recommend doing 20 mins each time.....even if I wind up doing steps over body weight exercises on occasion.  With climbing stairs would I also do 20 minutes or could this be less.  I know for cardio you said not to do the trampoline....but what about a rowing machine....as I have one and hate the idea of it just sitting there.....but if you feel it is not an effective cardio for the lower body (my target area) then I will put on hold and only do once I have also done the body weight.