How or what do you guys do to get the grass off walk and drives? I do everything I can to stay off them when I am mowing, but somethimes I have to cross them or turn on them. And everytime I leave tracks of green behind. I think it looks ugly as hell and hate it. I have tried power blowing, sweeping with a broom and scraping with a shovel. I watch other compaines cross walks that are fulll of grass and not leave a mark. What am I doing wrong or what have I missed?