Allow to alternate order of workouts - I prefer upper workout before lower workouts

It's really a matter of old habits and availability of weights in the gym.  Hence, I have found it more efficient to go with the flow and do my upper body workout days prior to the lower body workout days.  Understand the "rest" between workouts theory that makes lower body done before upper - so willing to modify.  But it is easier in this gym to do it in reverse order.