EmailBoston has lots of options for inexpensive drinkable wines besides Costco and Trader Joe's, and Chowhounds know where the bargains are.
Bin Ends in Braintree has a knowledgeable staff and offers a limited number of wines at a discount. mwk thinks the selection of unusual liquor and craft beer is also impressive.
The Wine & Cheese Cask in Somerville is another great option, especially if it's running one of its quarterly sales. awkwardpause has tried a "very drinkable" Chilean Cabernet Sauvignon from here that was priced at about $10 a bottle.
Other recommendations include Martignetti Liquors in Brighton, Winestone in Chestnut Hill, and the Spirited Gourmet in Belmont. For even more ideas, check out the full thread, linked below.
Bin Ends [South Shore]
236 Wood Road, Braintree
781-817-1212
The Wine & Cheese Cask [Somerville]
407 Washington Street, Somerville
617-623-8656
Martignetti Liquors [Brighton]
1650 Soldiers Field Road, Brighton
617-782-3700
Winestone [Brookline]
1160 Boylston Street, Chestnut Hill
617-264-0393
The Spirited Gourmet [Belmont]
448 Common Street, Belmont
617-489-9463
