Best way to clean a brush?

I ask this question because I've done it the same way for about 18 years and I'm wondering if there are any new ideas or techniques. When teaching newbies, I try to make it pretty simple and say something like, "The most important thing to remember is that it needs to run clear when your done, whether it's thinner or water". I know some guys hang their brushes or store them overnight, any input? Thanks. 1800Upstate