Related Clues:
- Number of times Howard Hughes's Spruce Goose flew
- How often opportunity knocks
- This person's got caught entering previously
- Individual catching cold in the past
- Like most capital costs
- A single time in concerto
- "I remember the time ..."
- By a single step
- ... upon a time for the storyteller
- At one time part of population census
- Eleven, in Ensenada
- Violence without evil ... that's the start of an old story
- At some early date
- Spin Doctors "___ in a while someone lives happily ever after"
- On the off chance both sides do it without repeating it