I recognize most parts of the old way methods described by peteo48 in first post. No way of getting the garden hose, just one bucket of water for washing the car from roof to sills and wheels and then another for rinsing. Drying with chamois only in warm summer time. Although in my family history we never used Fairy but Esso wash&wax small pillow-like single portion packs.
I like to drive with a clean car, but very seldomly wash it myself. I'm using a local carwash once every month or so. I'd even use the automatic car washing lines if they cleaned the door frames. For me the car isn't properly washed if I get the trouser legs dirty from the sill.
But when I do wash my car myself, my method is semi old fashioned too. First using hose to get rid of mud from sides, sills and wheelarches, then washing with one bucket of warm water with some basic wash&wax using brush or mitt, and rinse with hose. Then another bucket of warm water for cleaning door, hatch and bonnet frames with a rag. Drying with chamois only if it's sunny.
All that takes easily more than an hour. If I'd take the pressure washer, it'd be half an hour more. A professional carwash does it in 20 minutes or so. Only if I'd have to drive to town and back just for getting the car washed, it'd save time to wash myself. But combining it to daily commuting (when the lockdown is over) or other needs to go to town, paying for a carwash is solely saving my precious spare time.