I use City Wide for my store front windows.
I had used another service that started charging me for their gas! haha!
So I switched to City Wide--they were even $1 cheaper.
For $4 I get two store front windows, 2 doors inside and out cleaned--super shiny and friendly too.
If I want inside my store front windows it's only another $4! It can't be beat--I can't do it as quickly or nicely as they can and it's worth the $4 to me totally!