A dress shirt and a white crew-neck t-shirt are the kind of a no-brainer casual getup that you need when you have zero time. Complete this ensemble with a pair of dark brown leather oxford shoes for a bit of elegance. As this getup shows, you can't think of a better choice for hot weather. So if you're on a mission for fashion tips on how to dress well into your 60s, this combination is definitely worth saving for later.