I just wanted to applaud Toronto's use of stickers on the rear passenger windows that warn Taxi passengers to look for cyclists before opening the door.

I am one of those who would like to ride a bike instead of drive to work, but fear the inhospitable atmosphere that exists for cyclist (especially in the burbs). I just wanted to applaud Toronto's use of stickers on the rear passenger windows that warn Taxi passengers to look for cyclists before opening the door. I have yet to see this simple, but effective use of warning stickers on other cabs in other cities. Since others here have lamented the taxi as a number one culprit in dooring incidents I would encourage you to concentrate your efforts on getting stickers into the rear door windows of taxis around the world.

— Darren Rosebrugh