Black Tie v. White Tie

What It Means: The difference doesn't just come down to tie colors: white tie is synonymous with ultra-formal attire and is even dressier than black tie. White tie is generally reserved for grand events and is only worn after 6 P.M.

Ladies: For black tie, a long dress is appropriate but not absolutely required. For white tie, a formal gown is a must -- no cocktail dresses allowed! With white tie attire, be sure to wear your best jewelry and accessories.

If you have a fur coat, this would definitely be the time to wear it. Depending on the feel of the event, bare shoulders might be inappropriate for white tie -- though for most modern events it would be fine as long as the gown is formal enough.

Gentlemen: Black tie dictates that men should wear a tuxedo, while white tie dress includes a white bowtie (and white cummerbund, if appropriate) and tails.