Optimizing is More Mental than Physical

My son was getting frustrated with cutting the grass. We have an acre and he'd take 2 days to complete it. His total time was 2 hr 45 min (30 min prep, filling up grass, picking up large sticks, cleaning up yard toys and moving furniture) and 2 hr 15 min to mow over 2 days. He wanted a riding mower because it was taking too long. I have done this to solo cleaners for a long time and knew it was time to prove a point to my teenage son. I told Kenny. "You're off duty this week. I'll cut the gr...