FX rates have reversed a bit and now the CAD is a little more expensive than the USD. I will be in Vancouver later this week and wonder if I try and spend US dollars, will I be asked to pay a little more since it's worth a little less or can I get away with a 1-1 conversion for on the spot purchases?

I expect to use my credit card for most purchases (including the taxi from the airport, I hope) but this would be more for incidentals.

Thanks