I keep telling my clients that as you grow older make not only life but your look clean and simple. Wear classics, changing the color with fashion but staying within the palette as to what looks good on you and goes with the rest of your closet. Keep " bling" or "out there looks to accessories, that way you have a closet that has exactly what looks good on you and you alone, but you can up the fashion factor with your accessories.
I love the book "Parisian Chic" by Ines de la Fressange. She is so classic in her look she just changes things up with color and accessories. Here is what I am talking about, see what little effort she uses to make herself look current and yet you know who she is.