After paralysis and despair in the face of infinite shades of off-white paint a couple of weeks ago, I have graduated to a new form of suffering: choosing tiles. Tiles are even more fiendish, because the choice is multiplicative: you can choose several colours, finishes, crackles, glazes and glosses (are they different? I stopped listening to what I was typing after the first two adjectives), and then combine multiple tiles in different designs.