I think one very important rule of thumb ought to be this:
CLEAN UP AFTER YOURSELF.
If you are one of those extremely annoying types that likes to put the chalk down on the rail chalk side down, and get chalk all over the rail, or you like to use some absurd color for some reason, or you like to put a blob of powder on the shelf near your chair and put your fingers in it, getting it all over everything, table included....or any other of a million inconsiderate habits...just pick up after yourself.
Want to use powder? Put your pile on a napkin. After you put it on your hands, and you want to shake of the excess...bend down and put your hands near the floor before shaking them off. I don't want your powder in my drink, all over my stuff, on my cue that slides fine in my freshly washed clean hands because it is also clean, or on me. First of all if you are using enough powder that you need to shake off the excess, then you are using way too much. When your very first shot involves putting your bridge hand on the table and you leave a hand print in powder, yeah...you're doing it wrong. Many people have a serious problem with powder. See they get used to the rush of the nice smooth feeling, but that only lasts a short time. Soon the powder absorbs dirt and sweat and oil, and becomes gummy. Only more powder will solve the problem. For a short time...Powder addiction is a serious problem in the pool hall. What starts out as a small habit often gets out of control and begins affecting the people around you. There is help available. Most poolhalls have bathrooms, most of which have sinks, most of which have soap. Wash your hands and dry them well. Keep your equipment clean. For the vast majority of people, this works great. It is a habit. Having dry hands is a habit. It requires some effort to ingrain the habit, but once established, it remains pretty consistent. My hands used to be somewhat clammy at times. Those times were back when I used powder because I didn't know any better. By washing my hands every so often with soap, thoroughly, and drying them well, I was able to once and for all kick my powder habit. If you believe you have some wet/clammy/moist hand condition, buy a glove. For everyone else. It will probably help you too. Anyone that has ever complained about a skid, but uses powder...shame on you.
In any case, the idea is...when you are done and there is powder, or chalk, or whatever (how about hole reinforcements from the guy doing drills)...CLEAN THAT SH*T UP!
Rant over.
KMRUNOUT