Oh and the main reason for using NFC is because my phone has the NFC 'beam' mode.
The finished product might work a little something like this:
Walking home, open app on phone, check off things I want on when I get in (pc,stereo, etc), adjust settings like how bright the lights are, room temperature, walk through the door, touch phone, bang all done, look like a boss in front of guests, relax with beer 8)
Well that's the dream..
Adam