Our preferred method is to bring Travelers Checks (get them with no fee as a AAA member) and cash them for $J at a cambio. We use the FX Trader at the HiLo since we go there several times each trip for supplies anyway. I've also used the cambio by Bourbon Beach and one on the west end but prefer the FX Trader. There is an FX Trader on the hip strip in MoBay so you can skip the bad rate at the airport.