It may seem pretty obvious to people who spend every day working with domain names, but I bet the vast majority of people have no idea what a domain name actually is. Uniregistry posted a quick 2 minute video about domain names. The video explains the basics about what domain names actually are, how to buy and renew them, and the difference between a registrar and registry.
The next time someone asks you “what is a domain name?” or “how does a domain name work?”, you can probably share this video with them and have it explain everything for them. I often encounter this when I tell people I am in the domain name business, and this video would be helpful.