Trick Or Sweet

After World War II, the American practice of Trick-or-Treat began in earnest. Sprawing suburban neighborhoods delighted in watching costumed boomer children "beg" from door to door. Traditional Halloween party foods (candied/toffee apples, popcorn balls, nuts) were proferred along with pre-wrapped commercial candies. Savvy candy companies capitalized on this lucrative opportunity by selling seasonal packages containing smaller sized products. "Back in the Day" (your editor trick-or-treated on Long Island in the 1960s) it was fairly usual to get little decorative halloween bags containing all sorts of things. These were assembled at home, usually composed of loose candies (candy corn, Hershey Kisses, marsmallows, MaryJanes or Tootsie Rolls, etc.), some pennies and maybe a small toy. We also carried little milk-carton shaped boxes distributed in school and said "Trick or Treat for Unicef." Beginning in 1952, UNICEF's halloween program thrives today.

Full article at History of the Custom of Trick or Treating