Use anything in your day. Especially if it’s cheap and easy.
I lost my favorite writing pen today. This situation led to some introspection after I finally located said pen.
Turns out, I either like or spend a scary amount of time blaming and suspecting others for my own shortcomings.
(Note, the above might not even be true completely, but it’s useful as an exercise. I might have the problem in some measure since I thought about it 3 times today. No matter – it’s still good.)
The mystery began when I looked for it. I last remember seeing my pen on my desk, where my computer is, but it was in my journal all along.
The joy comes in when I remember all the times today that I called, in my head, whoever took my pen – an asshole. Joy is realizing that you have unknowingly called yourself an asshole all day. Joy!