Beat the Street, Hounslow

I'm joining rather late in the day, as there's only a week left of this scheme, but I'm going to make the most of it. I can walk around the borough and tap my card on special boxes fixed to lamp posts to gain points. I designated Brentford library to receive my points,case I think libraries need all the help they can get. I discovered that when I tap my card there is a very satisfying 'ding' and lights.