I am a light traveler and 99% of the time I only bring a carry-on and a handbag or backpack on my trips. As a result, I have become pretty efficient when packing. For instance, I once went on a business trip from Atlanta to Cancun and then to Toronto during winter, without returning home and with no checked bags. Yes, I managed to include both summer and winter clothes and shoes (several pairs) as well as casual and business attires. And I made it all fit in my hand luggage!