I've been too lazy to update one of my most popular Web sites.
No wonder - there is a huge amount of information there.
Reading through the information fairly quickly, a few things struck me:
1. For backup software you mention/suggest SD but not CCC
I actually use SD myself, but it seems most people use CCC. Any reason CCC is not mentioned as basically an equivalent/equal alternative to SD?
2. You recommend specific a Glyph Studio drive for backups.
Maybe you should explain why.
I use any reliable brand name external drive
3. Onyx is another common piece of software that is often recommended to fix "quirks" - I see no comment about that even though it's pretty popular to try to correct small problems
4. Glad to see the comment about the need to (or not to) "Keep your Desktop clear" - mine is full of files and folders and it was never the underlying cause for any slowdown or problem.
Not sure if there is a comment about the Mac
normally running slow after upgrading to a new macOS because of indexing.
And as a note:
None of the Mac users in my family actually do any, what I call, routine maintenance.
When I ask them about it, I just get that blank stare - you know, deer in the headlights.
and I never heard of the Titanium Maintenance software - something I need to take a look at.
But this is a great website, I can see why it's very popular.
I would recommend that everyone reads it, it clears up a lot of myths around the Mac with very useful information about certain macOS releases where Apple made some significant, but unadvertised, improvements.