Nanny Needed - Full-time / Part-time

Hi, I am looking for a part time summer babysitter for my two kids in Bethesda. The kids are 13 and 10. They need someone to drive them to (and stay at) activities such as swim team. They still love it when a babysitter plays card and boardgames with them. The weeks we are looking for are July 20-24 and July 27-31 from 8. 30-3. 30. We can be flexible with the times. We are also looking for just the afternoons (say noon - 5) the week of June 23-27. Competitive pay and flexible schedule. This is a great position for a college student home for the summer or a high school student who is old enough to drive. Must have reliable transportation and a safe driving record. Thank you!