Stock Your Closet
If you have the essentials on hand, you'll be ready for any occasion. 

You can never go wrong, for instance, by owning a cashmere sweater. There are always big sales as winter comes to a close.
 
Sharon also recommends investing in a nice pair of dark jeans. "This is especially important for men because, if you have a pair of premium denim jeans, you can wear them with a button-down shirt and a blazer." 

Women should have a few dresses that can go from work to night relatively seamlessly, Stacy says.