I'm having my reception in my backyard. Growing grass isn't really an option, and I want to keep it as cheap as possible. The back yard is dirt. It's a hard surface. I'd like to find something cheaper than synthetic grass to cover it with. I need a surface because my dress touches the ground and I don't want my dress and guests to get filthy. Does anyone have any ideas to cover it up with? I need to cover in an area that is about 1000 square ft. Thanks!