The car radio in the floppy drive bay
An old car radio, the computer's twelve-volt supply and a basement stereo gave me FM music while I worked at the computer.
Printing invoices with PostScript and plain text
How a Business Basic customer's invoice forms led to a PostScript program that laid out pages and calculated bills from CSV records.
Catching up on messages over a radio mesh
Thinking through how a MeshCore message store could fill in a missed conversation, and how devices would find it without using up the shared airtime.