On Fri, 13 Jan 2006 21:00:24 +0000, Dave Newt
wrote:

Good. Perhaps a poster campaign is required; "Save queueing! Did you
know you can buy season tickets by credit card from the machine if you
have an Oyster card" and the likes.

What makes you think this is "required"? Is there some evidence that
people don't know?

I was tempted to say "if it's a good enough deal, people will find
out". But there used to be a very good deal on booklets of 'bus
tickets. People who made occasional journeys could make an
appreciable saving. And it didn't really catch on.