Well, Halloween is fast approaching and soon it will be all over but the belly aches. Start thinking now about those Clearance sales that will have those pricey costumes discounted to practically nothing. Make a costume treasure chest for that budding actor in the family. Right now, you can buy the accessories like wands, crowns, fairy wings, swords, pirate hats, fireman gear, that sort of stuff fairly cheaply and wait until the clearance sales for the big ticket items.
If you have a daycare in your home all those items that you get so cheap are a wonderful addition to your "Mr. Dress-up" "tickle truck". The kids will love you for it. If you get some stuff at a garage sale in the summer and are a daycare provider in your own home, get the garage sale person to write you a receipt, dated, signed, for you to use at the end of the year when you do your taxes.