In 1946, after many years of painstaking research, George Orwell published his guide to making A Nice Cup of Tea*. He came up with 11 rules in total "every one of which I regard as golden". These include directions to the shape of the cup which should be employed, and the type of milk used. And rather sensationally (Orwell being, of course, no stranger to controversy) he states categorically that the milk should be added last.
The lovely designers at JollySmith have taken Orwell's rules and placed them, helpfully, on a "mug-shaped teacup", and here is the result.
*Evening Standard 12th January 1946