This week I just learned that apparently you are supposed to clean out your coffee maker with white vinegar every couple months or so to keep it clean. (I know, everybody probably already does this, but I am not a coffee drinker... my husband is)
Anyways, in my hunt to make sure this is really what you do, I found this really cool site that tells you 1001 Uses for White Vinegar. I already sprayed my plant leaves with it, to see if my cat will leave it alone. It's full of tips, definitely worth checking out.