I love Long Islands.  In fact, all I make are Long Islands.  Yet every time I make one, I have to independently mix the four liquors I use:  Vodka, Tequila, Gin, and Rum.  (plus I add lemon juice and splenda)     It seems to me it would be easier for me if I could pour all four bottles into one container and just pour my drinks out of that.  (and store this container in the fridge indefinitely until ready for use)  That way I don't have to worry about proportion (since I always mix them equally anyway).   Is there any downside to doing this (aside from the obvious downside that I can no longer pour any other mixture)? 
A small pot of water and baking soda (over saturated is OK), and a simple brush is all you need  A quick stir of the pot with the brush, and wash it on what you need works fine 