NOTAX

Set to 2 different clues across 2 published puzzles, most often “Welcome words for a buyer” — The New York Times, Wednesday, 18 July 2001.

5 letters

Every clue on record, most used first

Welcome words for a buyeronce
The New York Times — Wednesday, 18 July 2001
Benefit of some mail-order shoppingonce
The New York Times — Saturday, 27 January 1996