I would lay down the law for my daycare now at the prescreening phase before you decide to interview. Naptime is non-negotiable and 3 year olds NEED a nap except for very few children who drop their naps early in life so be firm with that. Tell them that you work long, long days. I always tell parents that I am far from finished my day after all the children go home.

If they are going to be 1/2 an hour late sometimes will it still fit into your business hours? If not, then are you actually willing to do it or not? Will you have proper notice? And for heaven sake let them know they WILL be paying a late fee.

In my experience a 3 year old is usually in the mid-final stages of learning to go on the toilet so find out exactly where they are at and let them know they are the ones who should be doing all the work at home, not you, because you have exceptionally busy days.

BEFORE you decide whether or not you want to waste your precious time with an interview get it all out in the open on the phone or by emailing. That's what I do anyway. Wishing you luck.