Happily, I'm getting more upscale properties. However, I find that large mulched beds are the in thing. Some homes even have beds all around the house as well. Must be 300 - 400 feet of edge to trim. My method is to cut my trimmer lines to about 3", flip the trimmer upside-down (no guard, of course) and pull it along the edge. Makes a nice sharp edge, but I must spend at least 15 minutes on this alone. Is there a better way? A special tool?