In downtown most places will accept US Dollars almost rare to see a place that won't! The best advice I can give is to change your money in Canada not in the US. When I flew up to Montreal in June I changed my money at the Miami airport and got totally ripped off compared to what I was getting in Canada.
Since it was on a Sunday and most banks are closed the bar I went to in Montreal offered a considerably better rate then the place I went to here.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.