Cheap Booze!

[metaldonnieg]

I'm a big fan of Southpaw since I can get it in a 6er of 16 oz cans for $2.85.

And I also actually kind of like the King Cobras, .99 for a 32 oz. beer which is plenty to get me a little loose if I drink the whole thing before it gets warm.

[BDurrani]

If you are looking for something cheap and don't care much for taste then you could always get Red Dog beer.
It's $6 for a 30-pack and according to a friend the taste is basically "straight yeast."
As for cheap liquor, here's what I've have had, and don't plan on having again:

Rum - Port Royal
Vodka -Bartons, Zelko, Popov
Whiskey - Early Times