Wes Stewart writes:
SWMBO returned just as I was paying up. She asked whether I had also
bought that dovetail doodad I'd been thinking about (Leigh D4). I
said, "No". She said, "Why not?" I said, "Add a D4 to the list."

Reminds me of an old story from my first employer. The sales dude
spent a great deal of time negotiating with a customer over a $400k
mainframe. Finally, with the deal nearly done, the customer mentions
they'd like a boatload of PCs and printers to go with it - to the tune
of another $800k.