We are a family of four who require sitter when one of the adults have to travel out of town for work. The toddler goes to daycare full day and older child attends elementary school. Hence it is primarily the after school, from 4pm to 7:30pm (bed time) when help is needed.
Take care of both kids after school. Prepare and provide snack and dinner and ensure lunch box and snacks for the older kid for the next day.