Just returned from a 2-week trip to Vienna and Prague. Decided to be brave and daring and took only this camera ---
The Olympus XA is a film camera from the 1980's. It's small, obviously, and can easily fit in a pants pocket, as long as you're not wearing tight jeans. It has very few of the "creature comforts" of modern cameras: you have to focus by yourself, decide what aperture to use (the camera then chooses the shutter speed), and - most shocking of all - you can't instantly review the shot you've just taken.
It's also tough. I accidentally dropped it on the floor of a shop (a camera store, of all ironies). The back popped open and I lost a few frames of film. I just shut the back and kept on shooting.
I shot 6 rolls of Kodak Portra 400 (plus half a roll of Fujicolor 200 that was already in the camera). I love how Portra renders skin tones and browns and yellows, and its color and grain were a really good match for the Olympus. True, I mis-focused a few shots and had some problems with a sticky shutter release, but I'm very happy with the results. (Click on each images to enlarge.)