Just put a pole in the middle of the field and attach a lawn mower with a rope to it. You can just relax while lawnmower works on autopilot. I think this is the easiest way to mow your lawn, but it only works on big and flat fields.
How to Draw a Circle Perfectly Freehand?
How to draw a circle perfectly? Learn this simple technique to help you draw a near-perfect circle freehand. It could be useful for drawing charts.