Before we went on the Divina, we were kind of confused about the drink voucher program and how it worked. Basically, they give you a little coupon book of the 18 vouchers and you give one to the bartender every time you want a drink. 90% of the drinks are under $8 (the vouchers are for an $8 dollar value). It does NOT include the special drinks that include the take home souvenir glass, even though they were under the 8 dollar mark.
We saved quite a bit of money and recommend doing this. We found out from one of the waitresses that we can in fact use our unused vouchers on our next cruise!
You can watch our new YouTube video explaining the system.
Hope this clears things up! If you have any questions, please ask!