I am finally doing the landscape installs i always wanted to. All very high end. Now i want to offer maintenance services to those clients. Some clients i will offer mowing too, while other clients have such horrible lots i would not mow it for any amount of money. The clients i do not want to mow, i would still like to hit them up with some kind of monthly 'bed maintenance charge". Besides weeding and edging the beds, what could i do every month?