When I was still working I used to carry a phone, a digital camera, flaslight, laptop, and often a level, 100' tape measure, IR gun, etc. when visiting commercial sites under construction and at delivery. When the "smart phones" came around (first was a "crackberry" for me) it lightened the load. I became accustomed ti reaching for the phone as a camera and a light quickly but it took a while before I stooped trying to flip it open and closed.
