Tea Cozies

Many of us will not see the use of tea cozies, because we don't have a big pot of tea sitting ready to pour anytime we get thirsty. But making a pot of tea is so much easier than making a cup at a time. Now, how do you keep it hot? You crochet or knit a little blanket for the tea pot...to keep it cozy warm.
I've seen some really cute ideas. From this grouping, I like the white knitted cozy with the rows of buttons around the bottom.