4 weekly for me, or multiples of 4 at any rate.
I have a couple of offices that are monthly as against 4 weekly, but with commercials in particular it is easier to be weekly/fortnightly/4 weekly. (or twice weekly for a few).
Shops and so on I am on time almost to the minute, domestics...well, I'll get there when I can, sometimes I'm bang on the money, but if I'm delayed cos of weather and so on, or holidays then I can be a couple of weeks late, it's never really caused me a problem.
My commercials have to come first.
Ian