With so many burdens in modern life, I don't know why I would want to shoulder anything more than one bag. This is it. I do it out of necessity. I like to be able to pack in 60 seconds because I'll be living in guesthouses and hotels for the next few months. Actually, I've been living in guesthouses and hotels for the last ten years. I lost count and haven't washed and changed sheets in years.
But it's not like I call myself something fancy like a minimalist or something. Another label, another lifestyle, another burden. Look it up. "Thirty steps on how to be a minimalist". I read about someone who always had clothes ready at the cleaners on the way to work to save closet space. Anyway, with a smart phone, why would you need anything else at all? I don't have a smart phone.