These days I use a 6x6 folder for walking around and general snapshots. Having a larger format camera which easily slips into a coat pocket is nice. But also, working with and printing from larger negatives is preferred. For the field and creative artsy-fartsy stuff I'll use the Horseman 45HF, both handheld or mounted. And for close-ups and other artsy stuff I'll use the Sinar F1 configured with three standards and two bellows. These three are more than enough to cover anything I'd be interested in photographing. I don't do underwater, space-walks, wing-walking, or cliff-diving, which I suppose helps minimize the number of cameras I need.