At M&S Finsbury Pavement (it's a London street, not a food-enabled paving slab) one in three payments under £20 are contactless these days, as shoppers save valuable seconds off their transaction times.
The supermarket group processes 230,000 contactless payments a week, which make up one in 20 of its transactions for £20 or under. In the food hall and at the self-service tills, that number rises to one in four transactions.
The numbers make M&S the largest UK processor of bonking payments, which is all the more remarkable considering that the contactless tills have been in place for less than a year."
Source: The Register, 9th May 2013