After months of bumping around the corners, I've 'found' a one-size-fits-all approach to my photography exploits. I have gotten a wallet-sized card printed, which I would hand out either on its own (after ticking the relevant boxes) or together with my namecard. Much better than writing out additional URLs at the back of my namecard (it can become quite tedious when there're lots of people or when you're hard-pressed for time), or printing out slips of notes and messages. The third section with the 'Street Photographer's message' would serve to reinforce what I find myself repeating in confrontations with strangers. Hopefully this would pacify them some, and would give them the option of contacting me for their pics as well, all self-explanatory on the card. The actual version of this has my contact details too, of course.