Like i have said before on this forum. If you shedual the cleans into a clander system, all you have to do is give them the next clean date.
When we leave a bill with a customer, on the bill is a big arrow pointing to their next clean date. This works very very well, as every customer knows when to expect us, things like bad weather and stuff are not affected.
It truly is the only way you can make the business work well in my opinion. Sending texts is time consuming. I dont need to do anything, i leave the bill, customer notes the next window clean date, i clean them again on the date that was given, next bill is left, new date.......you get it the cycle is on going.
I give all my customers the option to have quarterly cleans. bi monthly cleans, and monthly cleans.
By far the quarterly cleans are the most lucrative, bi monthly cleans are the most popular, and monthly cleans are nice to have.
Customer should always be able to choose what sort of service they want.