Fairly self explanatory! My house is in a lousy area for 4G access, so I don't mind visitors accessing the wifi, but don't want to have to give the password out, even for a Guest network.
Some of the NFC articles online are old, so just wondering what people use? Do you use a basic tag near the front door, or like a coaster type of accessory to make it obvious?
Why not let them access their own data?