I take each one and balance them on my knee (with my foot on a step stool) and wash their hands and face at the bathroom sink. I then dry their hands with an assigned cloth for each child, hanging on hooks with their first initial on it. The hooks are ones I got from Ikea and they hang on the towel bar. I change their clothes once a day, or more if it gets extra dirty. But since the cloth is mostly just used to dry, it doesn't get very dirty.