I have explained to many people who plan to vote no that not voting counts towards the No vote total and only actual votes for Yes count for the Yes vote total.
This way, if it is rainy or windy on September 18th then they don't need to worry about finding a cagoul or a set of umbrellas to keep them dry on their way to the polling station as they don't need to vote as not voting is the same as a No vote.
I on the other hand will have to get wet if I want to vote Yes, but that's all down to the way the rules and regulations were set out in the Edinburgh agreement and agreed to by Alex Salmond - he got to choose the question but David Cameron was very clear that this had to be the case.
The people I have explained this to always query it, so I say to them "it's in the White Paper book" and they always reply "I know - I've read it and it's all just a wishlist".
I've made 36 people who plan to vote no aware of this information in the last week, and even though it is unfair I think we should tell as many No voters this as possible.