There are various tools available to optimize your Mac usage. For example: 

- [Daisy Disk ](https://daisydiskapp.com/)
![[Pasted image 20231028152700.png]]

- [Grand Perspective ](https://sourceforge.net/projects/grandperspectiv/)
	- Graphically shows disk usage for Macs
![img](https://a.fsdn.com/con/app/proj/grandperspectiv/screenshots/3_4_1-Creation_Heathmap12-WhiteBG-dd7fb738.png/max/max/1)


## Booting a MacOS Version from USB

You can boot a different version of MacOS using a USB flash drive of just 32GB to operate. 

[This guide helps you go along with that. ](https://support.apple.com/en-gb/101578)

[This guide shows you how to create a bootable installer. ](https://support.apple.com/en-us/101578)