1. Load kids in car. Start car, open garage. 2. Unload kids. Go back inside, change dirty nappy. Repeat step 1. 3. Listen to ‘Hey Jude’ over and over en route to post office, as per four-year-old Boy-Child’s request. 4. Assemble letter-posting supplies: Letters, envelopes, gift card for nephew, photos for Nan, money for stamps. … More Fun with kids: posting mail in 21 easy steps.