Sharpening Skills

For several years I've cut the lawn with a reel mower. It's quieter, no stinky gas fumes, and gives a cleaner cut (if only the grass would grow). Really, the only maintenance required is the annual blade sharpening.
So that's what I did today. Pop the wheel off, attach the handle, goop the pumice on the blades and crank briskly for 7-10 minutes. It's actually very simple. With gas prices on the rise, I've seen more of these around the neighborhood and in stores but I wonder how many people actually maintain them.