Go Green - Fill a Growler.
I love filling up my growler on Thursdays for half price ($6), only you have to use one of their growlers. At least it pays for itself within a few weeks! Now if only I could remember to go on Thursdays. . . .
I've also found that the flavor can vary quite a bit between batches of beer - at least this was the case for the IPA. Still good though.