Spring Break/Summer Sitter Needed For Family With 3 Children

We are looking for a great babysitter for 3 children. I am looking for someone who can offer occasional support as needed including spring break (week of March 16th) and then more consistent support in the summer, 2-3 days/week, including Wednesdays, Thursdays 9-4. We would prefer someone who could help out with light housekeeping, who has their own car, and does not smoke. Also important is someone who is comfortable with pets and is CPR certified.