10 minutes a month to keep your Mac running like new
You don't need to be a power user to maintain your Mac. You just need a short checklist and 10 minutes once a month. Macs don't require much upkeep — but the few things they do need, they need consistently. Skip them and junk accumulates. Keep up with them and your Mac stays fast, lean, and predictable.
Here's the checklist. Pick a day each month (first Sunday, last Friday — whatever sticks) and run through it.
1. Empty the Trash
The most obvious step and the most commonly forgotten. Files in Trash still occupy disk space. Right-click the Trash icon in the Dock and select Empty Trash.
Estimated time: 10 seconds.
2. Clean out Downloads
Open your Downloads folder, sort by Date Added, and delete anything you've already used or don't recognize. Installers (.dmg, .pkg), old zip files, and duplicate downloads are the usual culprits.
Estimated time: 2 minutes.
3. Check storage
Go to Apple menu → About This Mac → More Info → Storage (or System Settings → General → Storage). Look at the breakdown. If any category seems unexpectedly large — especially System Data — that's your signal to dig deeper. Our System Data guide covers the most common causes.
Estimated time: 30 seconds.
4. Clear app caches
Open ~/Library/Caches (in Finder: Go → Go to Folder → type the path). Sort by size. The biggest folders are usually browsers, Spotify, Slack, and development tools. You can safely delete the contents of any app cache folder — the app will rebuild it on next launch.
Estimated time: 2 minutes.
5. Update macOS and apps
System Settings → General → Software Update. Check for macOS updates. Then open the App Store and update everything there too. Updates often include performance improvements and bug fixes that keep things running smoothly.
Estimated time: 1 minute (checking — the actual download happens in the background).
6. Restart your Mac
If you haven't restarted in a while (check: Apple menu → About This Mac — uptime is visible), do it now. Restarting clears temporary files, resets memory, and lets macOS run maintenance scripts that only execute at startup.
Estimated time: 2 minutes.
7. Review login items
System Settings → General → Login Items. Remove anything you don't need launching at startup. Every login item slows boot time and uses memory continuously. If you see apps you don't recognize or rarely use, remove them from the list.
Estimated time: 1 minute.
8. Verify your backup
If you use Time Machine: click the Time Machine icon in the menu bar and check when the last backup completed. If it's been more than a day (and your backup drive is connected), something may be wrong. If you don't use Time Machine or any backup at all — this is your monthly reminder to start.
Estimated time: 30 seconds.
For developers: add these
If you write code, add a few developer-specific items to your monthly routine:
| Task | Command |
|---|---|
| Clean Homebrew | brew cleanup && brew autoremove |
| Clean Docker | docker system prune |
| Clean npm cache | npm cache clean --force |
| Clean pip cache | pip cache purge |
| Find old node_modules | Check finished projects and delete their node_modules folders |
These alone can free 10–30 GB on a developer's Mac. For the full walkthrough, see our developer caches cleanup guide.
Or automate the whole thing
Gigatidy does your monthly maintenance in one scan — finds junk, explains what it is, and cleans only what you approve. No checklist needed.
Meet Gigatidy →FAQ
Does macOS need regular maintenance?
macOS handles most system maintenance automatically — disk permissions, log rotation, and spotlight indexing happen in the background. What it doesn't handle is cleaning up user-generated clutter: old downloads, app caches, and unused files. That's where a monthly check-in helps.
Will clearing caches slow down my Mac?
Temporarily: some apps may take a moment longer on first launch as they rebuild their caches. Within a day of normal use, everything is back to normal speed. The free disk space you gain usually improves overall performance more than the cache was helping.
How do I know if my Mac needs maintenance?
Three warning signs: storage is over 85% full, your Mac feels noticeably slower than it used to, or you get warnings about disk space. If none of these apply, your Mac is healthy — but a monthly check keeps it that way.