talk to them. 5 to 10 min will turn into 15 to 20min. Tell them that you don't open your door until 7am (daycare clock time). Then don't answer or unlock your door until 7am. If they keep showing up and knocking on your door before 7am. then let them know that there will be a fee for each minute they are early. If this happens make the fee a steep on like $5.00/min. Can you put a light in your window ans each morning turn it on at 7am to tell the family's you are now open and ready for them??