I found a secret* training weapon. It’s called a Sit Fit (i.e. catchy name for an air-filled balance cushion). The cushion didn’t come with instructions, so I’m assuming I simply sit on the air disc and get super fit. In three days.
*I’m usually better than this at keeping secrets.
Title: Otis Redding – (Sittin’ On) the Dock of the Bay. 1968.