This is a very comprehensive list (and the organisation is pretty inspiring) but missing a few things I have personally found very valuable in what I do (which involves a mixture of smallish new projects and retrocomputing repairs/upgrades/etc) - main one I'd mention is low melting point solder to use for desoldering larger components (both plated through hole and SMD) - it took me ages before I tried it and it's made a huge difference at least for me. Chip Quick is the well known brand but you can get cheap unbranded "bars" of it as well. I've also found desolder stations much easier to get on with than solder suckers - Hakko 808 is what I see recommended a lot though it's not what I have. Ultimately if it's temperature controlled I think there's not much to choose between them.

Finally there are some great very cheap logic analyzers out there - modern oscilloscopes will do this too but you have to get pretty high up the price list before you can make do with just one device for both uses.