Tip #1: Organize a costume swap.
It's wasteful to wear a costume for one night and then toss it, so think about how to ressurect previous years' disguises. Accessories like wigs and hats can be reimagined to evoke a different character each year. But if your child is tired of that same old clown wig, swap it for a friend's gently used superhero cape. Check to see if your community holds a scheduled Costume Swap Day. If not, consider organizing one yourself.
Tell us: What are you going to be for Halloween?