As black belts, we've all attended training, learned to use the tools, and now we're expected to implement them in our facilities. Honestly though, how often do you use every tool? Sometimes? Rarely? Never?
That's where the memory jogger shines - those tools that we just don't use often, but know somewhere in there that we learned during a long-forgotten training session at a hotel fueled by too much food and too much booze at night. You've got the knowledge locked away somewhere, of course. The memory jogger simply helps you free that knowledge by turning on the little light bulb of remembrance.