Newbie here, getting ready to leave in 3 days!!! Can't wait. I know we won't need much money because when on the resort tipping (except maybe for spa services isn't allowed). But as far as tipping at the airport, buying stuff from vendors on the beach, off resort souvenir shopping, how much cash should we bring? Will we have to change it to a Jamaican currency (forgive my ignorance) or is US $ ok? Should we have all one, fives, tens? Or will we be able to get change for bigger denominations like 100s or 50s? Thanks so much for the advice!!