I found an old (wet) nappy on the seat of my pushchair a few days ago. I must have put it down to put clothes in washing machine... The pushchair stinks. The nappy didn't leak or anything but it could have been there a week or two, (buggy wasn't used and nappy was hidden by cosy toes). So far I've tried scrubbing with washing powder and hot water, making a paste with bicarbonate of soda and water, sprinkling bicarbonate of soda directly onto the seat and I've also febreezed it. It stinks! The nappy wasn't even directly on the seat! The cosy toes was fine after a hot wash. Any suggestions?