So I have never hired a paid babysitter before, but now i need someone on a reoccurring basis one afternoon a week for after school care. It will be approximately the same amount of hours every week, but will vary a bit depending upon how long it takes my husband to get home from work. Should i offer to pay a flat daily rate, or on an hourly basis? And if hourly, do you pay by the half hour/15 min etc? What's a normal breakdown?