Did Weegee use one? I don't think he did. Does Salgado? I doubt it, but I don't know. What about Nachtwey? He didn't in "War Photographer," although he did use a waist pack to carry film and notes. Maybe he does now. Anyway, I've made a lot of observations since I started shooting, about half a year ago. At first, I got a camera bag. Somewhat large, but I stuffed it full of stuff...Camera, lens, flash, batteries, etc. It ended up hurting my back, and it really inhibited me. When I used it, I would always keep my camera in it. So, I would have to put it down, get out my camera, etc. to get a shot. Not a very fluid workflow. So, I stopped using it. Recently, I went to NYC with some friends. One of whom is a fellow photographer. He does use digital, but he never gave me crap for using film. He cheekily asked me why I hadn't upgraded to digital yet, but also subtly complimented me as he said something along the lines of "only artists use film anymore...I'm not arty enough to use it." Anyway, he brought a rather small camera bag, more like a soft-case for his camera. But, whenever he wanted a shot, he had to stop, take his camera out, etc. (He also had a zoom lens that he would fiddle with, but that is for another thread.) (Also, I read the often-loathed Ken Rockwell's "How to Carry Less" [I thought it said Lenses, ha]. I don't know why he can be so hated and yet so trusted by so many. He has good points, he has bad points, and he says a lot of stuff tongue in cheek. I like to read his stuff because I like to look at lenses and cameras, just like everyone else. What I'm trying to get at is that I think camera bags are a stupid thing to have. Instead of bringing a bunch of lenses with you at once, just bring one. Maybe two, if you're going to bring a second body with you. I just feel like I've been improving much faster as a photographer by only using my 35mm f/2. I feel like I'm considering the composition much more, and so on. It also allows me to be more spontaneous, as I just fling my camera on to my shoulder and go. I don't even sling my camera around my neck anymore. I love cargo pants. I can fit batteries, film, flash, a portable media player, etc. into them comfortably, and without imposing on anyone. A somewhat small camera slung over one's shoulder is much more unassuming than a massive camera bag. Even if I get some kind of telephoto lens that I want to haul around, I'll probably just replace my flash with it in my pocket. And when I bring a tripod, it gets slung right over my shoulder, next to my camera. So, does anyone have anything else to add? Possibly a justification for camera bags?