With multiple sized SIM cards inhabiting the mobile world, it can become extra frustrating when making the switch to a new device. You'll often find yourself needing to get a new SIM card as the size requirements from your old device might not match up with your new device.
However, there are often cheap ways around this especially in the case where your old device has a Nano SIM (ex: iPhone 5/5s, Moto X,), but your new device requires the larger Micro SIM (ex: Nexus 5, HTC One, Galaxy Note 3). In my case, I recently made the switch from an iPhone 5 to a Nexus 5 so I'd have an Android device to get full functionality out of my Google Glass and I ran into this exact dilemma.
In order to get my iPhone 5's Nano SIM to work in the Nexus 5's Micro SIM slot, I purchased this package of SIM card adapters for under $5 via Amazon. It arrived on my doorstep in 2 days (thanks to Amazon Prime) and quickly allowed me to convert my Nano SIM into a Micro SIM without the hassle of needing to get a whole new SIM card. The installation is pretty self-explanatory and is easy enough for even the least tech-savvy users.
Photo Credit: Simon Yeo