As long as we're talking about art auctions, here's an Almanac from 2006, when perfume magnate Ronald Lauder paid about $135 million for a painting by Gustav Klimt. Entitled "Portrait of Adele Bloch-Bauer Wearing the Wallpaper", it was described by Lauder as "our Mona Lisa". Some thought it was maybe not the best buy for $135 million (even though it's got bits of real gold in it).
Anyway, I did this list of mnemonic devices to help others from making the same mistake. These are not to be used by those bidding in tee Team Cul de Sac auction, of course.