I'm looking for a responsible and engaging babysitter to take care of three energetic boys aged 4-8 during the evening hours. The children love playing outside, doing arts and crafts, and watching their favorite cartoons. I need your help in planning a fun and safe evening routine that includes a healthy snack, some quiet time, and a relaxing bedtime routine. Please suggest some engaging activities and provide tips on how to manage the children's energy levels and prevent tantrums.