Keeping little faces and hands clean

This is so fundamental but I just want to see what you all are doing. Now that NJ is on solids, his face and hands get very messy after meals. I wash his face and hands with water after each meal. Is that enough? Should I be using soap or something else to clean him better? Sometimes the foods are "greasy" (like avocados, or cereal mixed with breastmilk) and I don't feel like those rinse off as well.

How about throughout the day? How do you keep your babies' hands clean?