Dd (15) has been asked to babysit this saturday from 7pm t0 11pm. The older boy is 3 years, younger 6 months. Would £4 an hour be a reasonable rate? They should both be in bed when she arrives. What kind of problems could she expect - and what advice would you give to help prepare her? She is nervous but excited too - and I will be nearby if needed. Any tips gratefully received.