Originally Posted by
isuzutoo-eh
Be much easier to apply if it was some sort of (secret/hidden/trojan?) app on your smart phone, and each time you synched via bluetooth, handsfree or similar, it traced your journey, using the phone's inbuilt GPS, accelerometers and data storing and transmitting capability.
No need to be in phone coverage area, it'd simply store info till you returned to civilisation, and you'd never know.
If a good programmer really wanted to develop such a thing, it'd probably take from now till tomorrow lunchtime to get working...