Historical clue formulations

• Close again, as an envelope — 2024-07-29
• Add new caulking to — 2021-06-20
• Zip, as a Ziploc, say — 2016-04-15
• Use again, as a Ziploc bag — 2007-06-13
• Use again, as a Ziploc — 2005-06-08
• Waterproof again — 2005-05-25
• Better waterproof — 2005-02-26
• Tighten, in a way — 2000-06-09
• Zip a Ziploc, e.g. — 1999-05-02
• Put the lid back on — 1996-10-03
• Close up again — 1995-12-11
• Recap — 1993-12-14