Stock up on your party supplies, outfit, decorations, and paper goods in one spot. This store can supply all the costumes you’d want for birthday celebrations and dress-up parties. Costumes for kids include animals and favorite Disney and superhero characters, such as Batman, Iron Man, and Donald Trump. While get-ups for adults range from spooky—think vampires, witches, and zombies—to humorous—such as Marge Simpson and Fred Flintstone—to sexy—such as French maid and the Immortal Seductress. Extra 20% off with code SEPT20 at LivingSocial. Valid 9/12 12:00am ET through 9/13 11:59pm PT. Up to $50 discount per deal; Restrictions apply.