When they contact me I direct them to my website which has the key info (hours, location, price). If they re-contact me to set up an interview I have them out. I always had 3-5 families come for each spot. I chose the family I felt was the best fit, this is based on the vibes from the parents (personality, demeanor, questions asked), age of child, the vibes I get from the child and what we discuss during the interviews.

Almost all contact is through email (I hate phones). When I choose a family it is through email and I let the other families know I chose a different family (nicely) through email.

Somehow I managed to fill all my spots with really amazing kids and families and have no regrets, though I did turn away some equally good families. My fees are high enough above the average that it helps weed out many 'problem' families. That sounds bad...but seems to be the case. My families are opting to pay $15 more a day for my daycare facilities, program and my experience. With their willing to pay more money they are willing to put the effort in to ensure all is in order.

Luckily, I was in no hurry (financially) to fill my spots so didn't feel pressured to fill on a first come basis.