I have one customer (the manger at TSC, and has refered me to 2 others there) anyway, she has me do service bi-weekly. She has about 1.5 acres all of it grass. The problem is most of it is shady and could actually do with a 3 week or monthly service, yes it grows that slow. But, about 1/4 of the lawn grows exceptionally fast and bi-weekly isn't enough. to keep from loosing her or over charging I was thinking of $65 for a full service (her current price) ever 3 weeks, then $35 for mowing the 1/4 that grows fast. The good groing grass is beside a main road and she does like it looking great but doesn't want to pay the full amunt every week when the whole thing doesn't need it. Opinions and thoughts????