Use mnemonic devices.

Mnemonic devices can be used to help you remember certain bits of information by relating the facts to an easy-to-remember image, word, tune, or phrase.

• For example, the classic sentence, "Every Good Boy Does Fine," has been used for generations to help people remember the lines of the treble clef (EGBDF) for sheet music.
  
  
• Relating the knowledge you want to remember to jokes or rhymes works well, too. These are fun ways to remember facts.