Historical clue formulations

• Things some sorters make — 2021-01-05
• Laundry loads — 2020-04-23
• Stacks — 2020-01-27
• Heaps — 2019-09-17
• Sorters' formations — 2009-12-06
• A ton — 2008-11-22
• An overabundance — 2007-10-27
• Oodles — 2007-05-06
• Laundry loads — 2006-07-05
• Lots — 2003-07-13
• A lot — 1998-08-16
• Signs of organization — 1996-03-23
• Naps — 1996-01-14