I’ve been using ULauncher for a while and I’m quite happy with it, it has plugin support too.

Yes, Clonezilla runs off a live USB. If it is large enough it can also store the partition you want to clone, making the whole process a lot simpler.

Once I had a mission critical service crash because the disk got full, turns out there was a typo on the logrotate config and as a result the logs were not being cleaned up at all.

edit: I should add that I used the commands shared in this post to free up space and bring the service back up