Just some bits and pieces that don’t really fit in anywhere else today:
Get your spreadsheet to talk to you at: Newton Excel Shakespeare
Anniversaries gives you the tools to avoid missing significant anniversaries (and also to find the value of phi).
Geometry for Joiners provides a spreadsheet solution to a geometric calculation that may or may not be very useful to joiners.
Finally my annual statistics summary gives a list of all the posts here that other people have thought to be worth looking at: