1. Buy everything you need days, not hours, ahead of time. Save the day of the party for worrying that no one is going to show up. Order napkins, mixers, and anything else you might need beforehand using only your voice — try "Alexa, order Tom Collins mix" or "Alexa, order party plates." 2. Send invitations. And ask people to RSVP. They won't, but it still sets a tone. 3. Overestimate how much food and drinks you'll need. This is one of those classic scenarios where more really is more. If you DO run out, you can always ask Alexa to order a pizza or something and say it's homemade. And secretly blame everyone who didn't RSVP. The grease is on their hands! 4. When it comes to food, don't just get chips. At least make a nice dip to go with them. Alexa can help you step-by-step with the recipe! "Alexa, give me a recipe for guacamole." 5. Give your neighbors a heads up about the party. If you want to earn extra adulting points, invite them. You never know what they might bring to the table. 6. Invest in some nice wine glasses. They don't have to be expensive, either. Just something that isn't a red plastic cup. 7. Leave out coasters. They're like fake IDs for being a true adult. 8. Make a grown up party playlist. Start with some classy songs, but don't be afraid to include some bops for the end of the night. Once you've picked out your playlist, Alexa can get the party going on your Sonos One. Just say "Alexa, play my grown up party playlist." Your music will sound great, but if a song doesn't fit the mood, simply ask Alexa to skip it. 9. Hang some decorative paper or streamers up to make a photo booth. If you want to take it a step further, design a geofilter for posting photos to social media. 10. Take people's coats when they show up. And put them away nicely. Don't forget that part. 11. Make sure there's enough toilet paper. And a plunger, just in case. 12. Hang up hand towels in the bathroom. It looks nice and keeps people from drying their hands on your body towel or wall. 13. Two words: board games. There's nothing like a board game to get the conversation flowing, not to mention cover any evidence of your pre-coaster past. Did somebody's botched party trick leave you without dice? Say no more, fam. Well, actually, say, "Alexa, roll a 12-sided die." That'll do the trick. 14. Have a backup bottle opener. Because one always seems to go missing. 15. Make plenty of ice. The colder the drinks, the hotter the party. 16. Give people places to sit. If your guests can't sit comfortably, they will have a bad time. They may say they had a good time, but they will be lying to your face. 17. Take a second to look around and enjoy yourself. And don't freak out at your friend who's not using their coaster. 18. Start the clean up before you go to bed. Not only will this help you get a head start on tomorrow, it will let everyone know the party is over. If they recently read a post about how to attend a party like a grown-up, they may even lend a hand.All images via Getty Images From the planning to the partying, the Sonos One and Alexa can help you with everything you need for a good time.