Historical clue formulations

• They often have sliding doors — 2025-04-25
• Airport transports — 2025-01-30
• Campers, e.g. — 2024-08-24
• Shoe brand with an iconic checkerboard design — 2023-06-09
• Delivery vehicles — 2020-07-20
• Fleet at a distribution center — 2020-01-25
• They have sliding doors — 2019-06-20
• Needs for some touring bands — 2019-04-28
• Circlers at airports — 2018-09-14
• Movers' vehicles — 2018-02-12
• Popular sneakers — 2017-07-04
• U-Haul rentals — 2016-06-22
• Some shuttles — 2016-05-17
• Movers' trucks — 2015-09-01
• Relocation transportation — 2014-08-29
• Rideshare rides — 2013-10-13
• Plumbers' wheels — 2012-02-29
• Ryder fleet — 2012-02-19
• Contractors usually have them — 2011-12-03
• Moving vehicles — 2007-12-21
• Airport shuttles — 2005-10-30
• Moving vehicles — 2003-06-08
• Movers' trucks — 2003-02-03
• Some car-pooling vehicles — 2002-09-23
• Movers' inventory — 1998-09-25
• Some campers — 1998-02-08
• Movers — 1997-06-17
• U-Haul rentals — 1996-08-19
• Delivery vehicles — 1996-01-10
• Movers' trucks — 1994-09-19