I'm known by my friends to constantly have a camera in my hand - whether that be a Polaroid, my Canon DSLRs, or a disposable camera.
I like to bring disposable cameras to trips or to mark an ending or beginning of something in my life. I don't know what it is about disposable cameras... I just love having the challenge to commemorate whatever event or so in the 30 or so photos on the film. It has never let me down.
In this case, I brought along a three disposable cameras to a Seattle trip, a Glacier National Park Memorial Day trip, to commemorate my last few days in Bellingham, etc.