I've mixed vodka with all sorts of things to avoid making an extra trip to the store, but this is only if I'm out of something tangy like fruit juice or tomato/V8. Come to think of it, I've done Tang and vodka (and water) and it wasn't too bad, in a pinch. Soda not so much, would do a Jack 'n Coke but don't want carbonated vodka.
I like the taste of whiskey but since vodka has practically no taste, it's always about whatever else I want to taste, which is why I bought the OJ, V8, etc. in the first place. Unfortunately sipping acidic beverages is bad for your teeth, so I have a water chaser.