at least one b&b that we stayed at quoted their price, but did not tell us this was a cash price. When I wanted to pay by credit card it was a little bit more (not a big bump, maybe 3-4%?), so I decided to pay cash anyways because I could.

We had one merchant try the old dynamic currency conversion trick...on a particularly expensive purchase of course (our totally gorgeous Irish linen tablecloth). They charged me in US dollars at an exchange rate of $1.31/E1 when the going rate was $1.25. So when the saleslady handed me the charge slip, I refused to sign it. She told me it was not her fault, it was automatic. After a bit of a standoff, she gave me a refund in cash for part of the difference. It wasn't quite enough to make up for the exchange rate difference, but I decided it would do. I was still irritated.

Don't let them push you around! if they try to charge you in dollars, just say no!

well, I've heard from others that it is. But it wasn't really my experience. I had one or 2 places ask me which I prefered (our Dublin hotel, for example). In only one place was I presented a charge slip already rung up in dollars. It just happened to be the most expensive purchase I made, so it particularly annoyed me.

I'm not sure if you will encounter it much.