If looking after a child that is under 5 then $10 per hr cash if older then $5hr or if more than 1 then probably $20 an hr.( say for a baby or preschooler & two older kids.) Just remember its not how much you pay, it's the type of babysitter you can trust to keep your family safe. If it was new years eve then I would say double the amount as they are in high demand. You could also get a babysitter to care for your friends kids & yours & share pay & give a lump sum for the night like $70-80 & stay out more than a couple of hrs. the more people to share the cost the easier it is to pay. Discuss it with those involved. No one wants to be ripped off & at the end of the day you want someone who will care & keep your kids happy & safe.