I got home one evening recently and I had 4 envelopes in the post box. They were all pretty much the same size, but there the similarities ended.
The first envelope was plain, brown and unaddressed, except for the ominous warning ‘To the Home Owner’. The second was a plain white window envelope addressed to me. The third had the brand mark of my mobile phone provider and the fourth the logo of the travel agent we went on holiday with six months ago and carried a message ‘Exclusive offers and packages for our VIP customers’.
So I took out my ‘stethoscope’ and listened for a brand heart beat from each envelope.


