Do you perform the same actions when you arrive at the office each day -- say, mute your phone, set up a Bluetooth link with your PC, and display upcoming appointments on your phone? There's a better way: When you tap your phone on an NFC tag, these sequences of actions happen automatically. You can also assign tags to pass along data like your Wi-Fi network's guest log-in info.
These small tags, such as Sony Xperia SmartTags, Samsung TecTiles or dozens of others, come in the form of stickers, labels, keychain tags and more. They're often sold in multi-packs, sometimes with different colors or icons for different tasks. You load apps on your phone to program the tags.