Babysitter Needed

We are looking for an experienced babysitter for 1-3 children in Medford, Wednesday through Friday from 3:00 - 6:00 pm, plus the occasional weekend afternoon or evening. Wednesdays it will be usually one 3-year-old boy, Thursdays and Fridays it may be him as well as our 9-year-old depending on the day. We also have a 13-month-old but he is in full time day care. We would prefer a babysitter who has their own car and who does not smoke.