Hello woody, Texas, and Yippee.
I also try not to use algaecide on any pool, whether it's my own or a customer's. I've only had to use the basics in my pool.. salt, cya, muriatic really. Some customers insist on using things I wouldn't use on my own pool. If they are a routine service customer, I do things the way I always have unless situation dictates that I choose another route.
Customers want me to service once a week to get their pool looking for good for the weekend and keep their chemistry in check. At that point I'm basically handing the ball off to them, yet in many cases I'm quite certain that nothing is done in the meantime even if I'm counseling them on the fluctuations of pool chemistry in a week's time. Many of these people are very busy business owners who only want to come home and swim.. not be responsible for the health of their pool unfortunately.
While I completely agree that using the least amount of chems possible is ultimately the best way to approach a pool, that is a blanket statement.. does not always apply when chemistry testing/balancing is not a part of an owners routine.
I dig the screen name. 
