I've got a good friend who has a small 5 or 6 account business. He mows the lawn for his small employer's building and has me do the applications. He has no pesticide license so I do it more or less to help him out. He asked me to come by when I could and spray some glyphoshate in the ditches and around the building (foundation, natural areas, etc.). I usually bill him, then he in turn bills the company. What the heck do I charge for just spraying "Round-Up"? I've never really had someone ask to just spray and do nothing else. All my accounts are full-service so it's always just been factored in. Thanks for the help.