A QR code (short for Quick Response code) is a two-dimensional barcode that allows you store a lot more data compared to standard UPC barcodes.

You can easily scan it with your smartphone's camera and because almost everyone now has a smartphone, it's becoming more and more popular.

Because QR codes can store more data, this also allows for many more use cases.  They're especially very helpful as a shortcut for entering long texts where it's easy to make …