I forgot a thing I was supposed go do yesterday when I get home. Not a big thing and I did get home quite late. But still I forgot.
I didn't write it down to my todos. I was too busy at the time ir came up. I also thought it was something small, something I'd remember. I might have if I'd have been at home earlier.
Now I did not read through my todos in the evening. I never do. But that's not the point. I still go through the list mentally. I don't have to remember the list. It's enough to remember there was something I should do still on the list. I use the counting method here too. I always keep count on the todos for the day.
Now I'm just going to go and do that task. Rule number... I don't know, maybe I should start numbering them ... anyway: do it right away if possible and it doesn't take much time.