The Perch takes credit cards. If you have a no fee one, just have them charge through in Euro. If you pay cash with Dollars, you get the conversion fee that ClubO has set for the period. They usually reset it once a week and it's pretty close to what the true exchange rate is, depending on how fast the rate is changing.
That's why I wander and follow La Vie Dansante, that's all I want, La Vie Dansante (JB)