Quills are required for writing notes, letters, and so forth. They are
available from a variety of sources throughout the realms, mostly scribes and
booksellers.
* The default wear location for a quill is on your ears. If placed there, you
do not need to remove it to write a note, the game will automatically snatch
it from behind your ear when you are writing, then return it there when you
are done.
* Quills are pre-inked, but will eventually run out of ink. Fortunately, they
can be re-inked with various ink sources available throughout the realms.