alcohol swabs, wet wipes, etc? In elementary school all classrooms had a sink in the classroom (and two bathrooms). So convenient for washing hands before blood checks. No sinks in the class in middle school. I know neither option is optimal, but what works for your child? Ideally she would wash hands after lunch before going back to class so at least there wouldn't be food residue, but I know that she's not going to want to do that and if she does at all it will only last a few days before she stops doing it.