In honor of your 40th, invite all your friends over for a black-tie or formal soirée. Everyone will love a chance to break out the sky-high heels and fancy jewelry for the night, trust us.

From Powder.com — San Clemente, Calif. (Nov. 10) — After 40 years of documenting fun and fresh on the slopes, POWDER magazine will celebrate its 40th Anniversary with a massive party in Sun Valley, ...