given my huge amount of property, many gardens etc. and working 50+ hours weekly outside the home, there is no way I could have a perfect lawn. We have a ridding mower. And we have many trees in the front yard. My delight of cutting the grass is in circles, going around each tree, then the next tree, then the nest tree, finally all the circles join. can look kinda neat. And if you can imagine, buzzzing around and around and around each tree at top speed.
On of my neighbors, used to take his ruler out to measure the height of the grass (really anal). If mine finally touches over my ankle, I think its getting time.