HI meg,
If you get the job watching kiddos, I have tons of sites for small activities to keep them busy and easy peazy snacks. Keep them busy and calmed down not off the wall makes the job easier. The mom can buy some small craft list things, keep TP empty rools, tissue boxes, foam trays, pipe cleaners, pins and seed beads.
when is the first day of school and how far do you have to travel?

Have a better day tomorrow,
di