"Deal with the manager in the currency he specifies -- he'll rip you off a bit when he coverts dong to dollars and vice versa even though every street vendor honors the accepted 20,000 to 1$ USD rate."
"You get 50 priority club points per check-in using foursquare and the topguest app on iPhone. I've collected 4500 pts and counting cuz I walk by here everyday anyway ..."