4. Pay attention to your supporting pieces - Some sweaters are lean and others are big and chunky. The first rule of thumb is that your top and bottom halves need to match. If you’re wearing a big, chunky, rugged fisherman knit sweater, your bottom needs to be rugged, too. Don’t wear a fisherman’s sweater with a beautiful silk-and-wool suit pant. Instead, wear it with something as casual as cargos or jeans, or dress it up with a Harris tweed blazer.
5. Never go shopping alone – Most of the time, it’s tough to trust the sales people because they usually work for commission. Shop with a friend who will give you their honest opinion.
6. Stay a notch above - Don’t overdo it to a fault, but dare to take some risks. It’s always better to be a little bit overdressed than underdressed in any setting. All you have to do is think about where and who you’re going to be with and just step it up one notch. But make sure you’re not better dressed than someone who is more important in a certain setting, like your boss. Kinowear Bible