The number of different cookies is what’s interesting in the Swedish tradition that dates from the century before last.. In the country where the word “lagom” (which means “just right”) originates from the drinking customs that prevailed in the Viking era, the number has great significance.. If you served your friends fewer varieties of cookies you were considered stingy, however, if the number exceeded seven, you were considered conceited.. Whoever it was that decided the number has not been recorded in history, but everyone has the freedom to choose the kind of cookie they want..