Related:

• Main CPU down, batch process only. One person at a time, please.
• Remember, Grasshopper, falling down 1000 stairs begins by tripping over the first one.
  -- Confusio...
• You know how it is when you're walking up the stairs, and you get to the top, and you think there's one more step?
  I'm like that all the time. -- Steven Wrigh...
• My systems are only programmed for one at a time. -- Data
• [It is] best to confuse only one issue at a time. -- K&R
• You're in a long comforting hallway.
• You're in the golden hallway.
• A recently completed study shows that people dwelling in stairs-only apartment buildings (that i
  buildings without elevators) live an average of three years longer than do people who live in buildings with both elevators and stairs....
• Bigamy is taking one too many.