Goint to Punta Cana in February for 1st time. 2 years ago in Cancun a $1 US tip was considered sufficient for a bartender, $2 or $3 U.S. for a waiter, is this adequate in Punta Cana for an all inclusive?? Also, I have been told that there is no need to convert to pesos - U S $ are quite acceptable - is this true?