Can't find it now, thought I saw something somewhere that if one is entering VN by ground and not flying in, one needs to show an air ticket for departing VN ? Maybe because this is not a visa on arrival....seems strange. I did not need any last year flying in to VN, bought my exit air ticket when I was ready to leave. This trip I am flying in, then leaving on a bike and returning via bike, will not have a return ticket again until the last moment. Will have the 3 month visa with return privelidges. Will this be a problem at some small border coming in from Laos?