A barn jacket and black chinos are wonderful menswear must-haves that will integrate brilliantly within your casual styling arsenal. Avoid looking too casual by rounding off with black leather derby shoes. Keep this getup in your head come spring, and rest assured, you'll save time getting dressed on more than one occasion. As you mature into your 30s, you want to start dressing like an adult man. That's when ensembles like this are a real lifesaver.