Since I don't participate in instances and dungeons, and the like, I don't have keys and therefore no need for a keyring. But one of the patch changes was an expanded definition of what fit in the keyring. When I logged on after the patch, I saw the little keyring button flashing.
I had this Captain's Key in Marielle's bank for the longest time and couldn't remember what it was for (although now that I finally got around to looking it up on thottbot I have an idea). So I tried out putting this key in the keyring and sure enough it worked. :)
Now if only there were a souvenir bag where we could put faded photographs, old letters, etc.
Those would be good gifts to get under the Wintervale tree every year. Keyrings, souvenir bags that go in a free slot in the bank, enhanced fishing poles, bad ties, you know the stuff.