I may have to replace it for one that lets the water run.
I fold the hose over and pinch it to save getting soaked when changing the tool on the end.
Ditto.
Open ended hose final rinse is one of the most important steps for ensuring the minimum of water is left on the car.
Mind you since getting the Race Glaze water filter I don't have to worry about that, but still follow my old habits and always will. Some people that use filters don't bother drying at all but I always will. The thought of door sills, boot etc with water sitting in the traps makes me cringe.
It's an expensive option I know, and as well as the initial outlay, there's an ongoing cost for filter replacement granuals, but the water filter is a brilliant piece of kit and it's such a relief not having to worry about water marks. Possibly the best £100 I've spent on a piece of detailing kit. If you are concerned about water marks, something to consider. Or just make sure you rinse and dry the car properly.