I wouldn't call my few hundred square feet of "grass" a lawn. It's mostly a mess of dirt, crab grass and dandelions, especially lush near the cess pool. I have a mower, but getting it started every spring after an idle winter consumes more time than a season of mowing.
So, for me, National Lawn Care Month (April) passed without a care in the world. I was in Home Depot the other day and was astonished at the volume of products on display to create and care for the perfect lawn -- an extravaganza of chemicals and machines - - a $40 billion-a-year industry based on the conspicuous consumption of oil and water, two commodities in short supply.
My attitude to dandelions is live and let live. Better all those yellow blossoms than the ubiquitous little lawn flags warning of poisonous applications of pesticides. The perfect lawn may be America's least felicitous contribution to planetary ecology.