From Ben Canosha’s blog, a good suggestion before starting a business with others:
Before going into a partnership with someone, spend time with them in three different kinds of situations: a relaxing one, a competitive one, and an intellectually stimulating one. – Joan Kelly
And as a model of collaboration, his new project, Business Rules of Thumb, is a public wiki to track useful rules of thumb from negotiation to marketing to presentations to PR. Ben invites your contributions to the wiki (password: thumb).
P.S.: As to the phrase rule of thumb, my research has not come up with a definitive source for claim that the expression derives from a English law that allowed a man to beat his wife with a stick so long as it is was no thicker than his thumb. Probably folk etymology or urban legend. The expression rule of thumb has been recorded since 1692 and probably wasn’t new then. It meant then what it means now: a method or procedure that comes from practice or experience, without any formal basis.
Want to learn more about Kaufman Business Law? This is the video to watch.