Never ever wait until the dishwasher is totally full. It’s an efficient device: put it on twice a day, on the quickest setting it has, and don’t feel guilty about it. Result: it’s never “a thing” that needs to be handled. Emptying it is easy. Takes one minute. You always have clean things. Sounds ridiculous, I know. Trust me.
Key to the efficiency is to not use the heated dry mode. The water is already hot and if you open the door when it’s done, the water will evaporate pretty quickly. Might get a few spots, but who cares?