Historical clue formulations

• Shirt stiffener — 2018-06-19
• Pressing need — 2017-09-16
• Collar stiffener — 2013-06-18
• Pasta has it — 2008-09-10
• Shirt stiffener — 2006-07-24
• Option at the launderer's — 2006-03-01
• Stiffness — 2003-12-25
• Laundry stiffener — 2003-07-28
• Boldness — 2003-03-30
• Photosynthesis product — 2001-09-26
• Laundry supply — 1999-02-21
• Calorie category — 1997-07-04