That's probably why, when my mom saw a whole set of them at an estate auction, she bought them for me. So when I opened my gifts on my 18th birthday, I was delighted to find these (and I remember laughing a lot).
They're perfect for a smaller cup of coffee or tea; I also use them for small portions of ice cream (when I don't want to go overboard because mmmm ice cream)! I actually have never used that one with the little spout (for milk/cream), but I do keep sugar in that last one.
Do you have globe mugs? They seem to be pretty popular!