Guest WiFi using a QR code
This is super cool and would be awesome for situations where your guests are familiar with QR codes.  But from my experience the process would go something like this:<p>Visitor: What's your wifi password?<p>Me: No password needed! We have a cool QR code you can scan that will auto-join you!<p>Visitor: Oh cool, how do I use a QR code? Do I need an app?<p>Me: Nope, just point your camera at it.<p>Visitor: Like .. .take a picture of it?  And then what, do I...<p>Me: No just point your camera at it.<p>Visitor: Ok let me try it ... oh cool it's prompting me to join your wifi network? what do I do now<p>Me: Yes Yes, just proceed, that's what it's for.<p>Visitor: That's soo cool, thanks.<p>Vs<p>Visitor: What's your wifi password?<p>Me: ShinyTortoise78