I'm not touching you Brits food safety habits with a ten foot pole other than to say that over here if it's moldy or out of date it gets trashed. Wasteful? Perhaps. Better safe than sorry. But I make a point of only buying what I'm going to consume in a weeks or two time to avoid waste. So don't try to convince me of the goodness of cutting mold off meat. I ain't having it.
But I am curious as to what you guys keep for documentation and records for your TEA or related activities. This is my record book. It is a printout of items such as schematics of home built projects, all my test equipment along with a record of all repair activity, diagrams of items such as interconnects of my audio system and video system. Security such as passwords and where they are located...most of them in a locked strongbox. And lastly, vehicle repair records and reference materials. Everything is softcopy except the reference materials. The programs I use are MS Paint, Open Office, TinyCAD, etc. Every time I make a repair, change, or addition I update the files. I kinda anal about that.
And related to that, what are your backup strategies? Each of my 3 computers have an external hard drive which is normally shut off. Once a month I run a complete clone on each using Macrium Reflect. This laptop also has cloud storage which I update manually. And certain critical files are sync'ed across all 3 computers using Allway Sync. It's not a fool proof backup plan but certainly better than 99% of the rest of the computer users which is none.