[ubuntu] /home on separate partition

It works better than I had expected before I tried, to keep /home when re-installing an Ubuntu flavour (I usually run Lubuntu). But I guess there can be conflicts in some cases.

You should notice that there are global settings and tweaks, that are stored elsewhere, for example in /etc, so every tweak and setting may not survive, when you keep /home.

If you store your personal data files in your home directory, those will not be house-cleaned, if you keep /home, and you need to get rid of that kind of junk manually