It's nice to have a smaller camera that you can trust to take a good picture, because lugging around a big SLR can be a pain, and if you drop one they can be expensive to fix! My small camera of choice is the Olympus Stylus Epic, which has a reputation for its simplicity and a great 35mm f2.8 lens, not to mention that it's also weatherproof and quite inconspicuous (mine is the champagne colour which is harder to take seriously than a black camera). These cameras are also easy to find, and cheap. As great as this camera is, I'm sure I'd be using a Leica Minilux instead, if I could afford one!
I usually keep a roll of cheap expired film in my Epic, so it's ready for action in the event of an unplanned outing. I'm try to be selective with my pictures though, as film = money.
Here are pictures from a film that I just had processed, it had been in my Epic for two months:
