Charge normal rate?

[Inspired by Reggio]

My formal policy is that I charge for the space being occupied ~ they want the space to be there again come September they pay full fees to hold it.

However I have been able to have clients who lucked out in that I had a school age sibling who needed 'summer only' care to slip into a spot for a teacher client my first year so I did not charge them they just left their security deposit to 'confirm' the intent to return ... I have also had times when I wanted a 'slow summer' so met a teacher in the middle with pay 50% of the fee and able to either send the kid daily half days or 2 days one week and 3 the next or what not.

Also know peers who divide the normal 'annual fees' up into the number of weeks in a school year and charge teachers 'more' during the school year. That way if they want to return in September they can leave a deposit to return again in the Fall and if not that they are just done and the provider fills the space again.