If you want to have a backyard wedding, there are a few things you need to do to make sure it goes smoothly. First, check local regulations and obtain any necessary permits. Next, consider the layout of your backyard and how to accommodate guests. Renting a tent or marquee and providing outdoor seating are essential. Don't forget to hire a caterer and bar service, and make sure you have enough restroom facilities. Lastly, decorate your backyard to create a beautiful and intimate atmosphere for your special day.