Today's lesson number one. When working with filtered columns in Excel, doing a "Paste Value" will also plow over the hidden rows. Which you won't see until you unfilter the column. Hurrah!

Today's lesson number two. When you save a document right after doing something incredibly awesome, it wipes out the Undo cache which makes it impossible for you to get back to the version before saving it. Hooray!

Life's lesson: Don't save, and don't save often. Stop working and go buy vinyl records instead.