Sometimes you just wish there was a big switch to turn off ads because they’re either really really bad, or you’re just plain sick of seeing them everywhere you go.  Well now your wish has come true, but you actually want to turn this ad on, not off.  A Toronto bus stop ad has a huge light switch that you can turn on and off.  When you turn it on, it lights up and you learn about Toronto’s new Green initiative, livegreentoronto.ca. Copyranter, which where I found this campaign from, makes the good point that this ad is ironic because you have to turn it on which wastes electricity.  Although, yes, it is somewhat ironic, I don’t think it takes away from the messaging.