Historical clue formulations

• Stockpiles — 2018-11-26
• Squirrels away — 2018-06-04
• Stockpiles — 2017-07-11
• Stockpiles — 2015-08-09
• Doesn't ever throw anything away — 2012-08-28
• Stashes — 2009-09-03
• Collectors' collections — 2008-02-13