I charge $32/day - $160/week for full-time and $35/day (minimum of 3 days per week) for part-time. I do like to have one child as a part-timer and 4 full-timers which gives me 2 days a week with only 4 children, so I have a couple easier days. Some people want to be full all the time but I like it this way and I don't try to fill the empty days at all. It depends on your budget and your preference.

I tell parents that the reason I charge extra for part-time is because I can't fill the empty days and also that they can schedule around stat days whereas the full-timers have to pay for the full weeks even when there is a stat day.