How do you find an occasional babysitter? We are lucky enough that "Grandma and Grandad" look after the kids if we've got something planned. However, DD just joined a theatre group. DS is far too young to go to her shows, but G&G obviously want to watch her perform so can't look after DS. We've not got anyone who can step in (those who've said yes are either never available or have let us down at the last minute). Where do you even begin finding a babysitter?