I'm trying to decide on a new string trimmer for next year, I also need an edger for drives and walks. Should I buy one of each? The other option I have seen guys using locally is some kind of disk on the string trimmer that allows them to quickly edge out a property. Should I look into one of those, if so what is it called? It will be used at my home and 5 other lawns that I cut. I am looking at buying a still trimmer, not sure if that helps.. Look forward to hearing what you guys think.