All our neighbors use lawn companies and apply fertilizer and pesticides constantly. They don't have soil anymore. It's mid to light brown dirt. At some point, we watched a video of a Gabe Brown presentation (author of From Dirt to Soil). Our new, hold-my-beer, "game" is to do as little as possible to our lawn - other than keeping it long - while still having it greener than everyone else. One factor that turns out to be critical is encouraging clover. Clover apparently fixes nitrogen, so a good grass/clover mix can be remarkably low maintenance.