You may regret asking this question.(?) OK, for a few years now, I've been having one failure after another trying to get a LinuxMint O.S. (a "full" install) to perform properly via a 2.0/3.0 pendrive. I experience severe lag and freezes and, sometimes, complete "crashes". I'd love to have you direct one of your videos to this issue. If you choose to do so, PLEASE...contact me to let me know. Again understand, I'm referring to a "full" install as opposed to running "live".
Some of this I know how to do, some I don't. Just ideas for you.
how to setup a DNS server
how to setup a print server
how to setup an NFS server
basic bash scripting
setting up Samba
security in Linux, what settings changes you should make on a new Linux computer (i.e. change SSH port).
how to troubleshoot issues, where to look for logs and what to look for
what to do when you make a video driver change and now have no gui (this one throws me). I used to be able to fix it when I could go into Xorg.conf but that file doesn't exist anymore