Take care of music and drinks. Choosing music for your party can be surprisingly time consuming — put together a few playlists now, and you won't have to worry about it later. Or pull out the vinyl collection and let your guests take turns playing DJ. Same goes for drinks: It's not like they will go bad, so stock up now and that's one less thing you'll need to shop for later. Plus, when you're not in a rush, you can take the time to shop around for the best deal ... win-win!