where is this from?

The wife and I once used it to keep our fondue warm.

I would like any recommendation for things that would make pf2 easier. I love the system and I am currently playing it I have the books and read them. I used nethys and watch YouTube videos explaining the rules. But when I am playing it is just so much to keep track of in my head. I am really looking for a remastered cheat sheet or something to put on my dm screen and the best way to keep track of all my players stats for when ever I need to do a secret roll. (Doesn’t help that I am currently swamped with work and try to spend as much time with my family as possible as well)

Sir Terry Pratchett.