Totally everything in beer, wine, and bubbly!
There are aisles and aisles of adult beverage options! Wow, plan to spend some time checking things over for your first stop. You may want to do the cash system too...just take cash in otherwise you'll end up spending more than you plan because of the variety and options.
They have some wine tastings, while I haven't been they have a nice section set aside for these events. They also have a fun water machine that will chill your beverage in less than 3-5 minutes as you walk out the door.
If you are running to a party and want to offer the host a gift, they also have wine bags and other totes to help you look well prepared.