Going Green....rotary blade mower

Well I decided to pick up a rotary blade mower and go green. I picked this mower up on Craigslist for $15...saved my pennies!! :) The mower was in fairly decent shape and just needed a good cleaning to get it going again. I removed all the trash buildup on the blade and movements and sprayed it down with WD40! Presto!! It works! This thing cuts the grass like butter!