• Beware
  
  
• Increases physiological problems.
  - precise selection task using mouse
  - more chance and cost of slipping.
  
  
• Increased cognitive overload:
  - rely on label to guess commands;
  - may 'lose' item they're looking for.
  
  
• Minimise use of cascading menus.
  
  
• DO NOT use for frequent commands.