I am a nurse and was an EMT for 6 years, so I came up with the "ResQme" part of my user name. For many years, it was just me and my 2 daughters, hence the "3". It's simple, but it works.
If you are a Robert Jordan fan, you know where my name came from. I was a fan of the Wheel of Time series and it tends to be unique enough that not many ever have it so I'm not stuck trying to be creative.
Popouri is an online name that I have had since old AOL days: it's a play on my last name and the word potpourri, which of course was never available as a username whenever I would sign up for online communities.