I can answer that question, because I thought about it after I saw this. I'm not actually recommending you be for or against this; I'm just throwing it out. I don't carry my driver's licence with me. When I'm driving, I have a photocopy of it and my insurance for the vehicle, which the Province of Ontario allows you to have. So if I arrived at the poll, I wouldn't have this stuff, but I'd trot out to the glove compartment and bring it back in. I could imagine that you are going to encounter voters who will do some version of that.
On December 7th, 2006. See this statement in context.