White Blouses

Katie Holmes strolled the streets of NYC over the weekend looking cozy-slash-chic in this Etoile Isabel Marant knit cardigan ($425), topped over a white silk blouse, which she buttoned up all the way for a polished feel. On bottom the actress wore black pleat-front trousers with black ankle boots, then added a pop of color via this Delvaux Madame black and red colorblock bag ($3,500). We're loving Katie's layered look, especially for the office, so to achieve it, just wear your silky blouses with your favorite knit cardigans. Don't forget to button up all the way for that extra-sleek touch.

While grocery shopping in LA, Ginnifer Goodwin showed off a simple-to-create ensemble that's perfect for a day of running errands or even a dinner out. The actress paired a white silky blouse — which she trendily buttoned up all the way — with cuffed dark wash jeans, then finished off with a black crossbody chain-handle bag, black patent flats, and black round sunglasses. You probably already own most of these items in your closet, so put them all together, be sure to button up your blouse all the way, and be ready to make a subtle impact wherever you go. For extra polish, throw on a blazer — black is classic, but we recommend a red or fuchsia one for major fun.