Ah, ouch. That complicates things a lot. All my trips to the US are very expensive, because I'm used to the price being the price, and it later turns out that the price is actually 20%-40% lower than what I'm going to end up paying (if you include tips). So I see a $50 steak and go "eh, that's not that bad for this quality", only to end up with a $100 bill.