Fork you.

Our plastic spoons are disappearing at an alarming rate - far faster than the forks and knives. Obviously, if you are using the spoons for eating, please continue. But if you're using the spoons just to stir your coffee/tea/other beverage, try using the stir stix. That's what they're there for.
(You know, if you put your sweetener into the cup first and then add your beverage, the force of the liquid will stir the sweetener in and you don't need to use anything.)