Many photographers will recommend carrying your camera around always. I am also an advocate of having your camera with you as often as possible. You may not want to carry around your full setup, you may not even need to carry around more than a single lens. That said, it’s usually a good idea to have an additional bag for your daily routine. Choosing a bag for any reason is often more preference than science, but there is a bit of a method to selecting such an addition to your list.
D. Travis North is a professional Landscape Architect, a Freelance Photographer and founder of Shutter Photo. Ever since he picked up his first SLR, his father's Nikon N2000, he's been hooked on photography. Travis likes to photograph urban environments, architectural details and has a new-found interest in close-up photography. His work can be found at D. Travis North Photography. Follow Travis on twitter: @dtnorth.