Has anyone ever heard of a childcare swap or done one? Basically, you find a mom in your area who has similar parenting philosophies/etc and similar goals, and if you both work part-time but different days, you swap looking after each others children- so no money is exchanged.

Ideally I would like to work part-time after LO#2, but 2 in daycare would be tight and right now we cannot afford for me to be a SAHM, plus I would like to work at least a little bit.