We decided to take advantage of an interim year with no kids in school half day, and renew our Disney passes earlier than planned. Arthur's first visit was much later than the other kids and he (!!!) loves it.
I made four trips the first week... First day with everyone.
The next day we went in the evening to see Paint the Night.
I took everyone on the last day of summer.
And on the first day of school, just Arthur and Sienna. The goal here was for Sienna to "see the princesses", which she had been talking about for a week, and we succeeded.