How to delete Time Machine backups on MacHow to delete Time Machine backups and local snapshots on Mac, and why macOS usually frees that space by itself.
Where iPhone backups are stored on Mac and how to delete themWhere iPhone backups are stored on Mac, how to see what they take and how to delete old iPhone and iPad backups safely in Finder.
yarn cache clean: how to clear Yarn cache on MacHow to clear Yarn cache on a Mac: yarn cache clean in Yarn 1 (Classic), --all and --mirror in Yarn 2 and later, and where each version keeps it.
How to clear cache on MacWhat cache is, whether it’s safe to delete, and how to clear app, browser, system and developer caches on a Mac by hand.
How to clear Safari cache on MacHow to clear Safari cache on Mac without losing history, passwords or sign-ins, how to remove one site’s data, and what each option deletes.
How to clear Teams cache on MacClear the Microsoft Teams cache on a Mac the way Microsoft documents it: quit Teams, delete two folders, restart. When it helps and what stays.
How to clear Go cache on Mac: go clean -cache and -modcacheHow to clear the Go build cache and module cache on a Mac with go clean -cache, -modcache and -testcache, and why rm -rf fails on ~/go/pkg/mod.
How to flush DNS cache on MacHow to flush DNS on Mac with one Terminal command, clear Chrome’s own DNS cache, and when flushing DNS actually helps.
How to select multiple files on MacHow to select multiple files on Mac: Command-click, Shift-click, Command-A and dragging a box, with a mouse or on a MacBook trackpad.
How to print screen on MacHow to print screen on Mac without a Print Screen key: Shift-Command-3, 4 and 5, where screenshots are saved and how to copy one to the clipboard.
How to back up a MacHow to back up a Mac with Time Machine to an external drive, why iCloud Drive is not a backup, and how to restore with Migration Assistant.
How to clear Firefox cache on MacHow to clear Firefox cache on Mac and keep your sign-ins, bookmarks and passwords: the Clear Recent History window, one site’s data, and what not to delete.
What is System Data on Mac and how to reduce itWhat macOS counts as System Data in Storage settings, why it grows and how to make it smaller safely.
How to reset SMC and NVRAM on MacHow to reset SMC on Mac with Apple silicon, Intel with T2 and older Intel, and how to reset NVRAM (PRAM) on an Intel Mac, with Apple’s exact keys.
How to clear Composer cache on MacHow to clear Composer cache on a Mac with composer clear-cache, where the cache lives, and how to free the space taken by vendor folders of old PHP projects.
How to clear Spotify cache on MacHow to clear Spotify cache on a Mac in Settings › Storage, move the cache to another disk and keep your downloaded music.
How to cut and paste on Mac: text and filesHow to cut and paste on Mac: Command-X and Command-V for text, Option-Command-V to move files, Paste and Match Style, and pasting on an iPhone.
How to delete conda environments on MacHow to delete conda environments on a Mac with conda remove or Anaconda Navigator, export them first, and clear the package cache with conda clean.
How to force quit on Mac (Ctrl-Alt-Delete)How to force quit on Mac when an app freezes: Option-Command-Esc (the Mac’s Ctrl-Alt-Delete), the Apple menu, the Dock, Activity Monitor.
How to check RAM on Mac and free it upHow to check RAM on Mac in About This Mac and Activity Monitor, read memory pressure and swap, and what clearing RAM on a Mac really means.
How to clear pip cache on MacHow to clear pip cache on a Mac with pip cache purge, remove one package from the cache, and clear the uv and Poetry caches.
docker system prune: How to clear Docker cache on MacHow docker system prune clears Docker cache on a Mac, how to delete Docker images and build cache, and what to do so you don’t lose volumes.
Mac keyboard shortcuts: the most useful onesThe Mac keyboard shortcuts worth knowing: copy and paste, windows, screenshots, Finder, text, lock screen, plus what ⌘ ⌥ ⌃ ⇧ mean and their Windows keys.
How to find and delete node_modules folders on MacFind every node_modules folder on a Mac with its size, delete the ones you don’t need in Finder, Terminal or npkill, and get them back with npm.

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