since there is not much else to say about the NFC tags anything to software:
I use the Android software "NFC tasks Launcher" (free of charge from the Google Play goals), so does that describe the NFC tags easily. even "switch" that can be created during the day, ie on the first connect: Bluetooth> On naviapp-> ON. the second time: Bluetooth OFF Naviapp-> OFF.
is a good example for the car.
Or TAG describe with airplane mode, the second command is the airplane mode.
describe or delete that goes within 1-2sekunden, a command occupies between 4bytes (WLAN on / off) and 20bytes (application start / stop) .1024bytes stand on the day.
Interesant is for example the inclusion of Android APP "Tasker" in the NFC Launcher tasks. In Tasker I can generate Even macros and then write about the tasks launcher on the day.