I got this the other day from the pharmacy I do every fortnight when I walked in to confirm with the manager that they were up this weekend. She tells me she'll pass this fortnight. I look at the shopfront: the windows are still clean. Hmm. On the one hand, it's good to know I did that good a job, but on the other that's the second business who've decided the windows aren't getting dirty enough to warrant a clean every two weeks. Mmmmm. Of course, I haven't exactly gone nuts on the whole canvassing thing, so I suppose I'll have to get onto that because although I haven't lost any of the 7 customers, and found them adequate practice, I'm seeing how fluid the regularity can become: since they are their windows after all, and if the service isn't needed on a given week, who in their right mind would pay for that service to be carried-out mm?