Spirit Halloween is a bit pricey so if you have to shop there to complete an awesome costume take a couple $5/$15 and 25% off one item coupons with you! (find them quickly under the apparel category)
Tip to get the most for your money: Use the $5/$15 for a transaction up to $20. This equals 25%-33% off. Split transactions as needed. Use the 25%/1 coupon for items over $20. You can use one 25%/1 coupon for each item in your transaction.