De Bono's Thinking Hats

The thinking hats I feel aren't the most useful way of progressing, as I feel as designers we already ask a lot of these questions and think in many different ways when we are designing, but I do feel it's useful maybe to force yourself into thinking in a way you may have ignored or forgotten and make sure you have covered all aspects of the post. i.e. I am not very black hat so it might be useful for me to make sure I have looked at it from a negative perspective.