Ever have not enough for a full cup left in the pot? Not enough to be worth saving for iced coffee? Really not enough for anything in particular?
I have a spare ice tray that I pour leftover coffee into and freeze to make coffee cubes.
Once they set I throw them into a quart bag and use them for all kinds of things: frozen coffee drinks, adding to milk for a coffee flavor, using in iced coffee so the ice doesn't dilute the coffee as it melts and the most delicious- adding to some Baileys Irish Cream for a little cocktail!