I use one wash cloth for each child per day and dunk it in a bowl of warm soapy water and let the child wash themselves. Then after each meal/Snack it gets washed in my sink while I do dishes, then hung to dry on a little clothesliney hanger (got it at the dollar store, I think it's intended for hanging delicates to dry) It doesn't take long to do this. I don't feel like nit makes that much laundry.
Each child uses the same bib all day and I wash them in the sink after afternoon snack. I use the long sleeved kushies bibs and they are great. They dry fast and can easily be wiped off for a quick clean up if snacks are super messy.