05. GPS


    Yes, they're expensive but it's far cheaper than a new dog.  In addition to being helpful in finding a lost dog, using a GPS has allowed me to hunt with no bells or beepers.  I rarely even need my whistle and knowing where my dogs are at all times makes for a much more relaxing hunt.  Garmin has a substantial head start on the competition:  http://www.gundogsupply.com/garmin-1-dog-combo-astro-320-gps.html