What a wonderful question! I'm a newbie, so I'm still learning every day...whether my 'teacher' be you wonderful folks on here, the parents, or most commonly, the little ones themselves. I've learned: No matter how well planned I think my day is, at some (several) points I'm just rolling with it, to sometimes just sit back and watch and listen (not to always have to be the problem solver), to keep ALL of my receipts, to build a network (for support and to recommend others to), that if you're fair, firm and consistent those corrections actually become less and less, to have them all go pee before I get all 6 in snowsuits, to not stress over eating patterns, to get as much done as i can during operating hours so that when the kids (other than my own) are gone, the playroom is off limits to everyone for the day and to bring a big thermos of coffee down to the playroom each morning