A shot glass is ordinarily used for drinking shots of liquor, such as tequila Jacks or Sothern comfort. Shot glasses also serve another purpose than drinking and might also make the perfect gift after visiting New Orleans or somewhere like Jamaica. Some people like to collect shot glasses and have their family and friends pick one up where ever they visit a different exotic destination. Having proper shot glasses are essential for the best shot drinking experience. Shot glasses come in a variety of styles, designs and sizes ranging from 1.5oz to 2.oz. The size of the glass is also an excellent reason to use them. Using cocktail glasses or red plastic party cups can lead to over pouring, thus wasting liquor and yourself.