Drinking! It's a fun passtime. However, attempting to Stash a drink on yourself, predictably, just leads to you spilling your beverage all over yourself. But what about those of us who like drinking in places that aren't bars?
That's why we could do with items like flasks, or perhaps thermoses. Get a drink, Pour [Drink] into [Container,] get an object filled with whatever drink you poured into it you can both drink from and put away without spilling.
Good idea, or greatest idea? Discuss.