If you're not afraid to experiment with color, check out OPI's new Swiss Collection for fall and winter. The rich, jewel-toned shades range from flattering ruby red (From A to Z-urich) to a daring gold (Glitzerland). Of all the manicure-worthy shades, my favorite is Diva of Geneva, a shimmery magenta hue that would brighten up any little black dress. To pull off these bold colors without looking cartoonish, avoid matching them to your clothes. Instead, use them to complement the neutral basics in your closet.

Here's how OPI Executive VP and Artistic Director Suzi Weiss-Fischmann describes the polishes: "The Swiss Collection features the same relaxed luxury that walked the fashion runways, where timeless shades of black, camel and cream were met with a wealth of jeweled emerald, sapphire, and gold. Wearing these colors on fingers and toes will accessorize the season's must-have pieces."

--Dana Wilson