Because I never write anything down when I run out of it, going to the supermarket normally means walking along every aisle and picking up whatever I need. This works ok, except that I see all sorts of products I wouldn’t otherwise. My inner dialogue then runs something like this:
Hmm, vitamin pills. Well, I always used to take them. But I seem to remember that their actual health benefits are minimal, and they are £1.50, so maybe I won’t.
Which is fine, except that I then see the coffee.
Hmmm, coffee. I don’t drink coffee. That’s saved the money for the vitamin pills then – into the trolley they go.
I’m such a muppet.