I know that this varies widely by area, but I'm just curious....what do you pay your adult (young adult -- early 20's) babysitter that drives to your house? I've only had a high schooler babysitting for me over the past year and I'm trying to gauge what to pay this new sitter. I did directly ask her what her rate was, but she said she didn't have one and it was just "whatever I felt". 1 child (3 yo); low COL area.