Related Clues:

• Vacation length, often
• Common pay period
• Seven days
• It takes days to make k, perhaps
• Common time between paychecks
• Half a pay period, often
• Barenaked Ladies hit, or how long it topped the charts in 1998
• Salary period
• Pay period, for some
• Barenaked Ladies song that opens with 'It's been . . .'