Goods Vehicle Safety - What do you think of this idea?

Thats all good stuff Oliver.

What do you think about handing out similar cards with sales at bike shops?

I'd be interested in getting involved and helping if there is anything I can do to contribute.

Well, it would depend on whether bike shops would do it. I'm not sure the point of sale as such is a very appropriate place. The message would have to be quite fine-tuned for that particular application. I should think if the message was placed within a couple of other basic riding tips, it would work well, e.g.: 'Enjoy your bike/get cycle training/take care around high-sided vehicles, etc.'. Not too much, keeping it simple, but not focusing only on that message. It would take a good deal of organisation to get bike shops on board, though.