I have the hardest time keeping grass both from the discharge on my mower, and just from trimming out of mulch beds. I see other people's lawns & competitors lawns that look great, very clean. Whereas my own yard, which should be the best IMO being what I do, looks very messy with grass in the beds as well as the grass that grows as a result. Just wondering if there was some sort of trick to this. I'd greatly appreciate it!