I was so bad at keeping on top of washing my dishes in Uni that I absolutely decided to have exactly 1 plate, cup, mug,and each cutlery. Can't have more dirty dishes than you have dishes.
Just don't leave them in the sink and you can do the same with multiple of each, saving you the wash up. Just out them straight into the dishwasher. Saves energy, water and time.
Been travelling in an RV for a while now. Family of 3. Have 3 forks, 2 knives (because adults cut the kid's food) and 4 plates since you need somewhere to put food off the BBQ that isn't someone's plate. It's glorious. So easy to clean up.