After all this time, Boots airport concessions STILL don't sell contact lens solution in 100 ml bottles. The smallest they stock is 120 ml, which of course can offend those in charge of the insecurity checks. You'd think that somebody at Boots would have twigged the opportunity by now. Of course, Boots are not well known for listening to customers, and their corporate performance is down the pan.

Unlike Tesco, whose customer research is second to none. There I was last week, looking in vain for extra points opportunities, when I came across Tesco own brand contact lens solution in 30 ml containers.

Thank you, Sir Terry.