Historical clue formulations

• Disposables kept as mementos — 2023-10-22
• Fleeting things — 2021-02-17
• Collectibles like ticket stubs and matchbooks — 2020-10-25
• Short-lived things — 2017-04-30
• Pamphlets, postcards and such — 2016-12-20
• Transient things — 2016-04-14
• Things for here and now — 2014-03-16
• Items of short-lived use — 2010-10-17
• Short-lived things — 2005-06-20
• Items of short-lived use — 1999-05-10
• Some collectibles — 1995-08-24