Richard Reynolds is a planner to admire. I'd heard about his smart, interesting t-shirts a while ago, and ordered a couple, and they're great. And then I heard that he was also doing this, which is one of the best ideas I've heard in a long time and is the complete antithesis of urban spam, and should be a compulsary activity for everyone who ever felt tempted to do some dumb ambient campaign.
And - and this should be useful and instructive for all you junior planners and people looking to find a job - there's something incredibly hire-able about someone like Richard, someone who does stuff, as opposed to the usual planning I-just-think-stuff stereotype, this is a very valuable quality in a planner. (Of course I've never met the man, so he could be a horrible planner, but I very much doubt it.) Visit Guerilla Gardening. Give the man some support.