I think a helmet is a tool that you should use as you see fit. I wear one about 75% of the time. Think about your commute and about wearing a helmet. Make a decision and ride your bike.

Helmets can help in some accidents, but in others they are worthless.

They may even cause accidents: http://news.bbc.co.uk/2/hi/uk_news/e...et/5334208.stm