If you're looking to buy or rent a fun Halloween costume this season, you're not alone. According to the National Retail Federation, a record 170 million Americans will spend close to $8 billion on candy, pumpkins, decorations and costumes – both for them and for their pets. It's a holiday we love, and retailers respond to that with specialty stores that set up shop in October and are gone the minute Halloween is over. When shopping at seasonal Halloween stores, it's important to exercise caution. The Better Business Bureau of Minnesota and North Dakota (BBB) advises shoppers to read the fine print to avoid fly-by-night costume vendors.