I know this about vodka from childhood, but I am always sorry to waste it...
Vodka can be used as desinfector if food that you had was alterated or not of good quality. Also if you had to much food and your stomack feels unconfortable, have a shot of vodka and started fermentation will stop. Near every medicinal plant can be infused in vodka for few days and used.
If you have some vodka in the cold weather you don't use the cold.
Vodka is the only one drink that doesn't have fat and you can have it when you are on a diet.
And a lot of other things....