One of the keys to this business is cash flow management. It is hard enough dealing with scheduling, customers, and mother nature as it is to have to worry about: a. pissing a customer off or b. not getting paid and doing free work. By going to a monthly billing program, it takes alot of stress off of you when paying the bills. I've actually gone to annual billing only. I take what the total cost of the services desired will cost on an annual basis and then divide that number by 12 for their monthly rate. By doing this I am able to add stability to my company and able to satisfy the customers expectations because they now know what to expect throughout the year. Most customers understand what we are up against when dealing with the weather. What they don't like is suprises. If they get one bill for the month then there are no suprises. If the weather is bad then you still get paid, but the customer knows their lawn is going to get done as soon as reasonably possible. One trick that some "cheap" customers play goes as follows: They ask for a quote for monthly service. Once they get the quote they say that it more than what they want to spend but that they do want us to come out every other week for 1/2 of the monthly rate. My response to these potential customer is that our twice per month service is 80% of the monthly rate. Typically the customer will either go the regular service route or find someone willing to work for next to nothing. Either way we win because we don't get stuck with extra work every other week or we get a good regular customer.