If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one.
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
Good idea - it is also worth having a scan of the complete list of commands every few years. I did this after a "friend" spent half a day writing a C program to do something that was already an inbuild command - live and learn!