My eating gear consists of my pot/bowl and a spoon. I scrape my pot/bowl as clean as possible and lick my spoon clean.

The next time I use my pot/bowl it will be full of boiling water which I will stir with my spoon.

To my way of thinking, boiling water is safer than dish washing. For me this system is the easiest and most environmentally friendly method of cooking. No gray water, no used plastic bags.