Spilling the Beans on the Cat's Pyjamas: Popular Expressions - What They Mean and Where We Got Them by Judy Parkinson

How on earth did 'with bells on' come to express enthusiasm? What do chips on shoulders have to do with inferiority complexes? And who is the face that launched a thousand ships? Did you know that 'the rule of thumb' refers to the use of the thumb to make measurements, as the first joint of the average adult thumb measures one inch?