[JockoT]

Here in the UK more and more towns and cities are introducing 20 mph limits which are often tightly enforced, either by speed cameras or by speed bumps. Edinburgh, the nearest big city to me, has introduced a 20 mph speed limit for the entire city centre which is being gradually extended further and further out. Eventually only the four main routes into the city will not be 20 mph.
My dilemma is how to drive economically in such conditions. Here in my town many of the speed bumps are quite fierce and even 20 mph is unsettling or risks damaging suspension parts.
They reduce speed in town, but have been proven to increase pollution, as most motorists speed up and slow down between speed bumps. Other than trying to keep as constant a speed as possible, is there any other advice you can give for coping with town driving here in the UK? Luckily my Honda Jazz/Fit is fairly low geared/torquey and I can creep about in 3rd gear for most of the time.