I have a customer in an upscale neighborhood whose sprinkler heads sometimes don't retract so I always have to do a walk through of the yard before I mow. So, I figured if i gotta' walk it first, I may as well make it productive. I went ahead and did all my trimming as I was doing the walk through and most of my edging with the string trimmer. This saved me some time but I also noticed that I usually have to go back after edging the pine needled beds and blow some straw back into the beds. Doing it this way, the straw that blew out into the yard, I just shredded with the mower. I was surprised at how much time I actually saved and it looked better, too. Or maybe I just thought it did.