Two for the price of one is irresistible. The proverbial “Buy One, Get One Free” (compressed these days into the acronym “BOGO”) is a pretty good deal: buy the 2-liter bottle, get a second one at no cost.

Some people figure that idea applies to legal documents, too: “If I don’t have to get two wills, but can get a Joint Will which we share, well, that’s a pretty good deal, right?” Wrong. Read more