Everyday I get calls from people inquiring about my service. They tell me that they have been using a service, big guy that is everywhere that sounds like gru treen, they aren't the only one just the most common, and they tell me that they STILL HAVE WEEDS. I don't get it. What is so hard about keeping weeds out expecially when using traditional products? I have gotten a lot of customers with A LOT of weeds, treated it once, no more weeds. Other than along the concrete as we all know where the chems don't seem to want to reach. But I hand pull those and they are done. Why can't these people keep the weeds out? Or am I just lucky? Not complaining, just dumbfounded. But hey... I'll take all their customers no problem. And in the process have them go organic.