In Reply to: I guess you are both posted by mopprincess on Tuesday, 10. August 2010 at 15:16 Bali Time:
I always purchase prior to going, I did the sums and I personally find it cheaper to purchase USD at the Post Office prior to going. I wait for the dollar value to go up (like this week) then purchase. There are no fees charged at the Post Office. The hotels I use charge in rp if you do not have USD in cash and it works out more expensive as they do not use the current rate to do their exchange. However, it is a personal choice.