Whatever you do in Beijing, DO NOT wear white socks with black shoes

The Wall Street Journal reports that 4.3 million copies of "an etiquette book outlining rules on good manners and foreign customs, including rules about what not to wear" have been distributed to Beijing residents for use during the Olympics. A snippet: "No matter what, never wear too many colors...especially during formal occasions. When you wear [formal shoes], be sure to wear socks in good condition...socks should be a dark color -- never match black leather shoes with white socks. Older women should choose shoes with heels that aren't too high." Let that be a warning to you.