This all probably sounds nuts, but here are my oil systems:

I wash out and recycle glass jars, but peanut butter jars are difficult to clean and will end up getting fat into the water system. So I keep the peanut butter jars for oil.

I also keep a bendy, steel decorating pallet in the kitchen for scraping out fat from the grill tray and rack. You’re left with some fat that you can wipe off with kitchen paper, which you can also use to wipe the pallet knife. Then washing up liquid and a splash of boiling water from the kettle.

There can be quite a lot of oil in leftover food, like sauces, too. I use a silicone spatula to scoop it off before washing.

Yes, but not just your own pipes: https://en.wikipedia.org/wiki/Fatberg

Good idea, but apparently not possible: According to Sky News “Mr Steele says he has no means of recouping his costs from UK assets owned by Trump, because the golf courses that bear his name in Scotland are held in trust structures.”

Apple News link

I have used OpenOffice on Macs.

Also there are some free Apple apps that aren’t installed by default. (GarageBand and one for making gifs)

That sounds right. I think I remember paying for iWork back then too.