First off, the easy stuff:

How to use the BBCodes

Next, some advanced BBCodes stuff:

Advanced BBCodes, Part 1

Private Messages

Note:
No, a cat has not sneaked into your home. In the background you will hear God's Bossiest Cat, MollyPolly Puddytat, reminding me that:

• She hasn't been fed yet.
• Her normal feeding time is 6 a.m.
• It was 6:10 a.m. when I started the video.

For the record, I did feed her and let her outdoors as soon as I finished the last line of the video.

In any event ...