Grumpy Old Geeks Topics 1-3-5 rule Topic 1-3-5 rule 2 mentions in 1 episode A daily task-planning method with one big task, three medium tasks, and five small tasks. Mentions 67: Wanted! 1000 Crazies Like Us. Jul 18, 2014 25:40 It's called the one, three, five rule. 26:32 I write it down the night before