[danielhep]

I'm also in a city without a car (and am proud of it), and also struggle with this. One thing that helped me a lot is to buy a few ultra lightweight packable bags. Ones that can be packed into a pocket in themselves. Then I put these in every backpack I normally carry with me. It helps that I rarely leave the apartment without a backpack.

[prmoustache]

Why do you need a bag to begin with if you carry a backpack? Is it always full?

[johnnyanmac]

mine mostly is. It's a tight pack for carrying my laptop and similar paraphernalia. It's not really means for storing more than a few small pieces of groceries

(note: this is rendered null anyway because I do need to drive everywhere in my suburb).