Shortly before a dinner party in Malibu one day, Barbra Streisand broke one of her fingernails. Her response? She visited her favorite nail salon -- in Beverly Hills. Total cost of the emergency repairs and the charterted helicopter which flew her there? $900.

[In May 2003, Claudia (an Argentinian women's magazine) received more than 100 complaints (and had to publish an apology) after telling readers they could restore old bottles of nail varnish by putting them in a microwave oven for three minutes. Many women who tried it found the chemical reaction caused their ovens to explode.]