Mnemonics

I was talking yesterday about things we learn and remember, even when we never use them in our lives.  
Here's another example for you - in tech school we were taught a mnemonic to help us remember the order and value of color bars on resistors.  I can still remember the mnemonic, but pulling up colors and their values takes some thought.  
The mnemonic was:
Bad Boys Rape Our Young Girls But Violet Gives Willingly (for) Gold (and) Silver, and the corresponding colors were Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, White, Gold and Silver.