Originally Posted by
GUWonder
I travel very often internationally, and I am about as much the proverbial cabin-baggage-only traveler as anyone else that travels a lot. It's not rare for me to arrive into airports or train stations in Europe or the Americas with cabin baggage-only, then hitting the grocery stores with my cabin baggage and come out of the store with 4 to 5 bags full of groceries. Why do that? Because I and my travel party members may be heading onward to somewhere where it's not sure when next it will be as convenient to get to the grocery stores of choice.
Sure, if that works for you. For most/many, including myself, I occasionally do this, but I only get enough such that I'm not overwhelmed with extra grocery bags, or I'm not physically inconvenienced by it.