Bring your kids to get their costumes photographed this year. We did this last year and the kids loved seeing the other children in their costumes. Plus they got to have their photos taken. Your welcome to get a couple in their costume and 1-2 without. What we did last year was everyone met at one location this makes it easy for me to just photograph one then another.
Last year it was from 3-5pm, probably do around the same time. Will post exact time soon