A while back a friend and I had a 99 bottles of beer on the wall one-liner competition in Ruby. I just found this in my home directory and so am claiming it as my entry:
def b(c)"#{c} bottle#{c>1?"s":""} of beer on the wall"end;99.downto(1){|x|$>0?x-1:99)}.
It weighs in at a hefty 206 characters and I know it is possible to get it smaller than this, but it is way too much of a time-sink for me to try.