Quite. I've never understood why people toss them away. Is it because wrappers can end up sticky? If you must take them along, put them in your pocket and wash your kit afterwards, which I hope wouldn't be too significant a departure from long-held habits for RP riders. :)
http://www.standard.co.uk/news/london/selfish-cyclists-slammed-for-dropping-litter-after-richmond-park-deer-deaths-a3350046.html