How to use a liter of vodka

[SuperChuck]

I think my method is the easiest: let's say it say use 1 part vodka 1 part juice

Pour half a glass of vodka half a glass of juice ---- NO PROBLEMS

But you'll never know how big a glass you're going to need if you do it in ml. 50ml or booze and 50ml of juice? How many hogsheads is that???

"When life gives you lemons, make lemonade...and find someone whose life has given them vodka, and have a party" -Ron White