It used to be that the sales of lipstick was best way to gauge the economy. Well, move over lipstick! The new must-have body art accessory is nail polish. Last year Volvo offered three shades of nail polish to match the latest hues of their cars. It's not like I haven't talked about this before, but is there any TV show, blockbuster movie, pop star, or celebrity out there who doesn't have a nail polish deal with OPI? Even the Kardasians have a nail line--in 14 "Kolors"--coming out in time for the holidays.