Phones are also very bad for battery time. I was out caching with Griff and the battery ran out three quarter of the way through, I managed to find them due to printed maps. My GPS could last for at least 5 geocaching trips and I could replace the batteries with the spares I kept
"Hats off to Wacky Races!" - ohh that was lucky how you managed to find them! Good old ABFTN

- A good point about battery life, too

And also good points, walk tall and Gackt.