Only in terms of the countries you can travel to without a visa. Go just about anywhere with a Canadian passport and they'll wave you past, almost like they're annoyed you think you might be considered a security risk.

I got a 6 month visa in the UK while laid over at Heathrow in under 10 minutes. Under "Reason for your stay in the UK" I wrote "a cigarette."

Why did you need a visa to get a cigarette? Canadians don't need a visa to enter the UK for tourism/transit/business, subject to some maximum amount of time (90 days IIRC, but definitely more than enough to buy a packet of cigarettes).

I was holding a carton of Marlboro Reds purchased in Berlin, so I didn't even need to buy any. I'm fairly certain we still need a visa, but it's basically an automatic process.