I've been debating whether or not to purchace a stick edger. I know they work wonders around sidewalks and driveways, but can they also edge beds? Every spring I edge the beds by hand, they come out great, but it's extremely labor intensive and time consuming! (Especially when you have customers with hundreds of feet of landscape beds to edge) My question is: For those who have stick edgers, do you use them for bed edging, or are they simply used around sidewalks and drives? Thanks!