We’d planned on flying to Xi’an today, but we didn’t realize that in order to pay for tickets with the reservation site we’re using (CTrip.com), we had to pay 24 hours in advance to use a foreign (US) credit card.  So we saw some local sites, got oil massages, and fly out tomorrow.  We had to make a snap decision about how long to stay there, so we will fly the next morning to Guilin.