We don't have vouchers here in our country and I only got to know it when we went to Hongkong. We used the voucher given to us by a relative for the entrance to Disneyland. Later on, I learned that they buy vouchers there to get at least 10% discount. The catch is you have to pay the voucher in advance. Well, not bad for a newcomer since the relative had bought the vouchers for us in advance. In out next travels, we always avail of the vouchers that now can be purchased online. It is another great way of saving money as long as you have the cash today, buy a voucher for your trips abroad.