I do most of the time, but the past few days, for example, have been such bad weather I didn't want to take an expensive bag out into the elements. Both of my MBMJs that I would consider are all black, and only one has a small placard that even says the designer's name, so most people probably don't even notice. I do bring a designer wallet all the time, but it is in whatever purse and also not heavily logo-ed that if I wanted to just run to the store with it everyone would know what it was.