Parties are way more fun if you don't have to do all the cooking, so host a Halloween Potluck and let your friends show off their favorite Halloween potluck ideas. The best potluck ideas are dishes that can be shared, but that doesn't mean you have to make it all main dish. Ask guests to sign up for courses so that you get a range of appetizers, desserts, mains, and sides, not fifteen plates of (adorable!) cupcakes. As host, you should provide the plates, utensils, and napkins, but you can also set up the bar if that makes party planning easier.