I have done some searching but can't find what I am looking for. I am seeking a cost effective herbicide (or combo) for spraying landscape beds, sidewalks etc that won't bleed and has a residual. Location is NE Wisconsin. I use to mix glyphosate/Vegemec but Vegemec got crazy expensive. Sahara works well w/glyphosate but is tough to mix in a backpack and seems to settle out overnight. I have also tried Gramoxone which works well to burn weeds down fast but has no residual either. Glyphosate alone is too slow and has no residual. We do treat most of our beds w/Snapshot or Barrier in the spring, so we're just seeing breakthrough. I also am curious as to how you price spot spraying weeds? We have been charging by about how about much we use but it's a lot to track. Some of our larger properties can take up to 4 gallons a week just in the asphalt cracks, aprons etc. Any advice is greatly appreciated. And of course I am licensed and certified.