I am currently writing a letter to all customers informing them that I will be using a year round billing system as the new standard for billing moving forward. The main hang up for me is the number of services to charge for. I have seen two other company's contracts and they both used 28 mows as their basis for pricing. Does this sound right to you? I have always billed monthly at the end of the month so I've never been worried about mowing when grass isn't growing just to say I mowed 28 times. My customers average about 22 mows per season. How many mows do you guys perform per customer per season? Also any ideas, thoughts, suggestions, things to be aware of or whatever on year round billing are welcome.