I wish the currency would remain stable. I start with my list of hotel choices in NZ$ (my home currency on .co.nz) and when I click to buy it becomes Euros because the booking is done on their European site, I suppose. I then have to check that the Euro rate is the rate I clicked in NZ$, which it often isn't because you have to reveal all the rates available for that room and not just the lead-in price (non-flexi, no breakfast etc).
Either childish attempts to squeeze an extra $ from me or incompetence. Charitably, I go for the latter as I can't believe Accor would bait and switch for NZ$10.