Got my first real enquiry about potential mindees, family coming to visit me at the end of the week. I had full-time, part-time & after-schoolers' charges kinda sorted out in my head but this family has one child starting playgroup in Sept and I'd have to pick him up from there... Do I only charge for hours he is with me, then if he's with me extra hours because of playgroup holidays, then charge the additional for extra hours he'd be with me? Has a younger sister too who'd be with me all day, think they need me about 3 days out of 5. Help! What else do I need to think about before they come?