Rather than have a guest select your Wi-Fi network and then enter a fiddly password, just make them a QR code their iPhone can read. Here's how to do it.

QR codes make it easy for people to point-and-tap to access an online menu, connect to Wi-Fi or link to any website. Learn how to create a QR code.

How to make a QR code Plenty of apps for computers and mobile devices will happily create a QR code for you. There are no major differences between most, so it doesn’t matter too much which one ...

After declining in popularity for a time, QR codes are back, offering a seamless bridge between physical and digital experiences to enhance multichannel strategies.

Here's what reading this QR code looks like on my Android phone, using an app simply called "Barcode Scanner." To find a scanner application, Google "QR Reader" and the model of your phone.