If your a friend of mine, you might find this post useful. Handy advice on drinking well without spending too much money. The comments are probably better than the post, my favorite tip (listen up Spence):

Hey, if you’re just looking for neutral spirits (and that’s really all vodka is, anyway), buy a liter of Everclear, add a liter of distilled water, and you’ve got yourself 2 liters of (in effect) 95 proof vodka for under $20. Good for mixing, if not for sipping.

cUnfortunately, the advice is limited to liquor, and no tips on how to stay classy in the local bar on the cheap. Hat tip to Lifehacker