> * My user account wasn't added to the sudo group by default, and using `su` broke something with PATH (/sbin wasn't in PATH after running `su`).
The default profile for users (/etc/profile) hasn't included sbin paths for the entire time that I've used Debian, which always seemed a little weird to me, since there are definitely binaries in there that normal users can still use (e.g. lsmod).