Historical clue formulations

• Service symbolized by a dot and three curved lines — 2025-10-27
• Often-spotty service on a train — 2025-04-28
• Hotel amenity — 2025-03-13
• Something that's often free in airports but expensive on airplanes — 2024-12-26
• Coffee shop freebie — 2023-05-31
• Amenity with a password — 2023-02-10
• Subject of a houseguest's query — 2022-10-28
• Connection you might miss while flying? — 2020-07-30
• Free offering from a cafe — 2020-03-29
• What'll help you see the sites? — 2019-12-23
• Flight amenity that costs extra — 2019-08-13
• Surfing aid — 2018-11-07
• Service symbolized by a dot and three curved lines — 2017-05-25
• Airport amenity — 2017-04-02
• Modern flight amenity — 2016-10-08
• Boingo service at airports — 2014-09-08
• Provider of a hot spot at a coffee shop? — 2011-07-23
• Internet cafe connection — 2011-01-04
• Coffee shop convenience for a laptop — 2010-09-28
• Internet cafe offering — 2009-12-30
• Internet cafe offering — 2008-06-11
• Internet connection at a restaurant or airport — 2008-02-11
• Modern kind of network — 2006-06-12
• Kind of computer connection — 2006-06-06
• Kind of connection for traveling computer users — 2006-02-15