Spoiler Alert! We have hidden this information so that you have the choice to try it on your own, or have the advantage of knowing how the sausage is made...
[66][Daily] Liquor again! is not truly a "Daily" quest. It is infinitely repeatable but the only reward is the Bottle of Liquor. This is so that, if you use, discard, lose, or sell your Bottle of Liquor you can get another. The Bottle of Liquor is required for Infiltrate the Lion's Den and any other time you need to get past the Watchman and talk to Futen Whitehorn in the cave.
Once you have done this the first time, gotten the liquor and mixed it with the extra ingredient to create a potion to sleep, and you have talked the first time with the watchman, you don't need to re-do [Daily] Liquor again!. Next times you need to re-enter the jail, just talk with the watchman and offer him liquor again!, and that's it.
Daily Quests are repeatable up to a total (for all Daily Quests) of 10 times per day. The count can be reset to zero by purchasing and using a Daily Quest Ticket from the Item Shop (for 39 ($1.16)† ) or from any Phirius Merchant (for 780 ).