I am of the opinion that your public space decorations should be left at home. Beauty is in the eye of the beholder. Your "dress up" is another's "tacky".
Unless you have a refundable deposit, you will lose the deposit on the cancelled cabin, and then your remaining cabin will be repriced at whatever the current pricing structure is.
I do it all the time. Charges to all cards are posted in USD and it is up to your institution to do the conversion if required. Your Canadian USD Visa will be charged in USD just like when you use it on land in the US.
Thanks. I know what and where they are, but the acronym escaped me. I sometimes wish people would write things out in full at least the first time in a post for those of us that aren't aware of all the short forms..