Organising files
Colour tags are the fastest visual filing macOS offers, and almost nobody searches them.
Select files → ⌃1 through ⌃7 for the seven default colours. Or right-click → pick a colour. A file can carry several tags at once — the entire point over folders.
Rename the colours to meanings: Finder → Settings → Tags. "Red" is noise; "Urgent", "Client", "Archive" are a system.
whole Mac
mdfind "kMDItemUserTags == 'Urgent'"
mdfind "kMDItemUserTags == 'Client' && kMDItemUserTags == 'Urgent'"
The second finds files with both tags — cross-cutting queries folders cannot express.
Three or four tags with real names, applied at the moment a file arrives, beat an elaborate scheme applied never. The habit is the whole game:
Tags live in an extended attribute on the file. They travel across APFS and HFS+ volumes, and they are lost on exFAT and through most cloud uploads. A tagging system built for files that leave the Mac will lose its tags at the border — keep tags for local organisation, not as metadata expected to survive everywhere.
A Smart Folder for "Urgent tag, modified this week" is a live worklist. Tag as you go, and the saved search assembles itself — the closest macOS comes to a task system built from files.
Click the tag in Finder's sidebar for everything carrying it, or ⌘F → Tags. mdfind queries kMDItemUserTags, including files with multiple tags at once.
On APFS and HFS+ yes; they are lost on exFAT and through most cloud services.
Everywhere keeps track of every file on your Mac — including the folders Spotlight hides and drives you have unplugged. Free for a day, then $19 once.
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