This has worked wonders for me to get my 3 y o to remember how to do certain things. I have made a list and stuck it up on the wall in the toilet (has just started using toilet independently but forgets all the things he is meant to do). He can't read so I have drawn pictures next to the different items which are:
wipe yourself (drawing of toilet roll)
pull up your pants and trousers
put the seat down
wash your hands
shut the door (nb yes I am a bit anal about this but otherwise it is left wide open and blocks out all the light into the hall)
This has been very effective for us this week and he is proud that he can 'read' the list and remember what to do. I think it could work well for other jobs such as room tidying, getting ready to go out etc (put on your shoes, go to the loo, get your coat and so on). Am now wondering if it would work for dps....