Crutches and Step

I've been messing about trying to figure out the best way to do a step.  Larry and I had figured out going up but a friend said the doctor had told her dad, "Good foot first going up and bad foot first going down."  She said to remember it by remembering "Good go up and bad go down."  Well, it did help to remember and I'm doing better with the little step I must negotiate to get onto either porch.