Your Most Stylish Year Ever

"Classic faux pas include not having enough coat hangers, ice or places to put garbage," says event planner Marcy Blum. Stock up on hangers that have grips—your guests won't be happy when they see their coat on the closet floor. Another faux pas to avoid is "cleaning of any kind when guests are around," says Sandra Lee. "Washing the dishes should be done when the party is over and everyone has gone home."

Flocked hanger set, $35/30; buy online now at overstock.com.