Try this as an exercise sometime - go out and shoot with only one lens. A fixed focal length lens. Sure, you find a lot of shots that you can't take, but you start to learn to shoot with what you have, and you'll come back with more great images than you expected. When I took the Xpan with me to Spain along with the Hassy, I ended up shooting maybe half a roll with it and I've never printed those images. I shot maybe 20 rolls with the Hassy. I've printed many of those, and even exhibited them and sold one or two along the way. You get used to that feeling of wishing you had another system with you, and learn to get past it. For each image you do get that the other system wouldn't have allowed you to make, you lose ten that would have been at least as good because you were taking too much time switching between formats, cameras and lenses. On my last trip to San Francisco, I brought the 5x7 and I think 4 lenses. As an exercise, I took just two of them with me (the 110mm f8 W.A. Dagor and the 240mm f4.5 Heliar) on one of my night shoots. I ended up using the 110 on maybe 2 shots. The rest were with the Heliar. The next night, I took just the Heliar. When I drove to the Purisima Creek redwood grove to shoot, I took the whole compliment, but again I really only used the 240, and MAYBE the 110. And I'm pretty sure I got more keepers that way. I know there were a lot of "street" photos I could have taken if I had a smaller camera, but that wasn't my goal on that trip. You're best served setting a photo goal for your trip, and then planning your equipment around that. Or at least planning a goal for the day's shooting, and just go out with the camera that will best fit that day's goal.