It’s hard to get a gadget that does absolutely everything you want it to. It might have some features that another device lacks, but still be missing something that you really want. Of course, there is a way to get the best of both worlds. Take, for instance, the iPhone 4. It has plenty of great features, but lacks NFC capabilities. As it turns out, it’s not all that hard to add this functionality.

One person decided that he really wanted to be able to make small transactions with his iPhone, simply by tapping it at certain credit card terminals. He ordered a fancy NFC card, which is meant to be carried on your keychain. He then opened up the back of his iPhone 4, and found that there is just enough room to set it between the battery and back cover. So if you have one of those cards, just open up your phone and add it. It’s as simple as that.