Seconding this. I have a discarded 4050TN from an old job and it's been working for 10 years printing thousands of pages per year, only rarely needing cheap and plentiful toner. I did have to replace the board with the microswitches to detect the size of the paper drawers, otherwise it would think each drawer had legal stock. All original rubber rollers, drum, etc. I don't have the #s handy but it feels like my cost for 3rd party toner is $100-$200/year, at most.

One of Heinlein's early works, Time for the Stars is close. They send out slower-than-light torchships, find hostile natives on the last planet they explore that ends badly, and are rescued by FTL ships developed since the torchships left.

n/c

Back in the day, BeOS dumped all the messages in one folder with each message as a separate file (like Maildirs) and used file attributes to add any label (or set of labels) you'd like.

1.msg [ classification=Spam ]
2.msg [ classification=Inbox,classification=Spam ]

The desktop interface let you sort out files based on their attributes. Better e-mail clients also understood some of the common file attributes.

Linux now has attribute based filesystems that are getting mature - it should be possible to do something similar.

A DYI solution, but what on Linux isn't? (: