One of the most classic things you can wear with a suit is a basic, white blouse, with the collar folded over the lapels of the jacket. This is a timeless look that never goes out of style. It looks very sharp and professional every time you put it on. Classic white blouse is a reliable staple that goes with almost everything, and you ought to have at least a couple. For variety, get a few basic blouses in other colors too. If you have day when you feel tired of the black power suit, you can brighten things up, with a blouse in a color like red or cream.