I also vaguely remember when my knees allowed me to bend like that. 
Beautiful car and color...
1 question and 1 comment..
1. why does your title say the "last wash"? are you getting rid of it?
2. Griots garage sells a handy rolling detail stool that you can sit on and comfortably clean your rocker panels, wheels, etc...
Just a suggestion: Leave the car keys in another room to prevent your doors from locking and unlocking and the lights flashing on and off every time the water hits the door handles.
Maybe I learned something! I've never used pressure washer to wash/rinse my door sills and trunk areas. I guess it works!