After-school Childcare In North Potomac (4th And 7th Grade)

We are looking for after-school childcare for the remainder of the school year. It is 4 days per a week and 3:40 to 5:30 or 6:00 p.m. depending on the day. Expectations would include picking up from school, helping with homework, and driving to after-school sports/activities for our two children. Our daughter is 4th grade and our son is 7th grade. Looking for someone who is responsible, friendly, fun and has a clean driving record and reliable car to take our children to local activities. Would love someone who has an interest in childcare/education. Must be comfortable around pets (we have a dog and cat). Since our kids are older we would appreciate someone who wouldn't mind some light kid related household chores during down time. We live near High School in Gaithersburg.