160: Hours required by the Make-up Designory (MUD) of New York City to complete a course in makeup artistry

$0: Cost of joining a computer-game MUD (Multi-User Dungeon, Domain or Dimension)

15: Minutes you should rub liquid detergent into a mud stain, after letting the mud dry and brushing off as much as possible

$50: Cost of a one-year membership to the National Mud Racing Organization

Sources: Various Web sites