Sure, smartphones allow us to communicate with anyone in the world at any time and provide access to a global network of knowledge and entertainment, but it's not like we can just pull the things out of our pockets and start using them. No. Instead we are forced to type in a four-digit security code!
This provides a unique set of physical challenges. For example, let's say that your security code is 1-9-8-2. This means you have to send your thumb up to the "1" at the top left of the screen, then move it all the way down to the bottom right to press the "9!" Then you have a little break moving it over to the "8," but that's temporary, because guess what, then you have to move your thumb all the way up to the top again to hit "2!" What are we, slaves?
Thankfully, for those of us who weren't born with Arnold Schwarzenegger's thumbs, help is here in the form of Digital Tattoos. These NFC-based skin stickers come in packs of ten. You stick one onto your body and tap your phone against it to "accept" it, which should be easier than getting your parents to accept that tribal/Celtic/Chinese character tattoo. From then on, you just tap your smartphone (it can be any smartphone in the world, as long as it's a Moto X) against the sticker and boom, the phone is unlocked, no Gatorade breaks required.
The adhesive "lasts for five days, and is made to stay on through showering, swimming, and vigorous activities like jogging," making this ideal for those who like to shower, swim, and/or jog vigorously.
Digital Tattoos aren't free, of course, they're $10 per pack. But that's no problem, because when you run out, you just pay them another ten dollars and then they give you another pack. In other words, you can just keep buying them!