Originally Posted by
txflyer77
I stumbled on a collapsible bag from Muji in Tokyo recently.
Paraglider Foldable Boston Bag Black
Packs down pretty small and for the price I can't complain.
I also have one of Sea-To-Summit's ultra-packable tote bags. Packs down to about the size of shot glass but expands to the size of a grocery bag. Serves as an excellent travel companion for toting around dirty clothes, a picnic lunch, souvenirs on the flight home, clothes for a day at the beach, etc.
I think it's this one:
Ultra-SilŪ Sling Bag Sea to Summit
I would second this. I have one and carry it on all my trips. For international flights, i put my entertainment in this bag, then pack it in my backpack. Then I just haul the Ultra Sil out and stash my other carry on bags.