Eg. "a lady came into the shop earlier and asked me..."
"I met a lady in the library who..."
Not the greatest examples, but I keep hearing this in a simpering, mincing, totally non-sarcastic kind of way- generally from social-climbing types who are anxious to sound 'polite'. Please, please do not let us go down the American route of perceiving the word woman as a kind of belittling slur. It shouldn't be.