Last time we flew out from Birmingham airport there was an offer in the duty free shop, 5 litre bottles of either Gin, Vodka, Brandy or whisky for £30 !!!!
Needless to say I (and my good lady) took advantage of this superb offer, trouble is when you have all those bottles in the house you are tempted to have very, very large measures. Fortunately my other half doesn't drink!!!!
(all the more for me.)