Do play with pops of brights when the temp rises. Try a colorful cardigan, like the orange one above, or a grass-green skirt to break up your neutral wardrobe.
Don't pile on head-to-toe brights for work or you risk looking like a toucan on a cruise. One piece is enough.
Do live in covered-up sandals with chunky straps like Eva Mendes', top right. They look great with dresses, skirts and pants, and won’t be as hot as pumps or loafers.
Don't wear flip-flops for work unless your job involves sitting at a lifeguard station.
Do exercise your right to bare arms. Think Jackie O and Mrs. O: chic, timeless and perfect day to night.
Don't wear strapless or show cleavage or a bare back at the office unless layered under a cardigan or jacket. The rules have changed—but not that much!