I lost a post I was submitting to a supplier's ticketing system today. Wrote it, spent ages rewriting and trying to get it the least embarrasingly awful I could, got second opinions, and finally clicked "submit". And ended up at a login page because my session had timed out, the post having vanished.
In the end I could retype the whole thing with no problem because I'd taken a photo of it on my phone as that was the easiest way to read it to my dad downstairs to get his opinion on it!
Backup-by-photograph. Ha.