IMO
Set to 4 different clues across 4 published puzzles, most often "I think," briefly — The New York Times, Friday, 3 June 2011.
3 letters
Every clue on record, most used first
- "I think," brieflyonce
The New York Times — Friday, 3 June 2011
- Start of many a blog commentonce
The New York Times — Thursday, 3 March 2011
- Chat room shorthandonce
The New York Times — Wednesday, 27 February 2008
- "I think," succinctlyonce
The New York Times — Saturday, 10 February 2007