We're leaving for the RDC in less than a week (3rd time), and on previous visits we have tipped in US$ paper bills (no coins - see other posts on this forum). Now I've seen some comments that make me wonder, which is the better currency to use for tips - US$ or pesos? I was led to believe that US greenbacks were an attractive currency for the hotel staff to receive, but if it's a problem for them to exchange or they have to pay a fee at a bank, then that's not the message I want to give with my tip. Can anybody inform me on this point? Thanks.