Fastmail is great, specially for power users. I personally like Hey email because of the unique features it has.
1,148 karma · joined April 25, 2014
Here's another article on it: https://www.engadget.com/2019-09-11-deezer-royalty-system-sm...
Unfortunately, they've since changed it to a model that the labels wanted.
Taking a train vs plane can cut your CO2 emission quite a bit: https://www.seat61.com/CO2flights.htm
What are the regulations on staff? I'm not aware of what Amtrak is required, currently. I'd imagine that's their biggest cost, not weight. Although, I do like the idea of having a more compact/denser sleeping cars. The Roomettes are really small, but they come with attendants, etc.
Amtrak is currently upgrading some of their long distance cars: https://www.travelandleisure.com/amtrak-upgrades-overnight-t...