Mnemonics

Some memes are also mnemonics - concepts that assist in the remembering of more complex concepts. Consider the slogan "Which Bank?" It reminds millions of Australians that the Commonwealth Bank is somehow the best bank to go to. Here is a memory exercise given to school children to hopefully help them be safer and more self-assured:

Trace your open hand on a sheet of paper. Now on each finger and thumb write the name of someone in your life who you can trust to go to for help or to discuss your problems with. Stick your traced hand with the five names on your wall.

I wonder if this may be useful for adults also.