Well my simple answer to that is... NAVIGATE!
I have recently bought a GPS unit for my PDA, and TomTom Navigator software! I really don't know how I managed without it!
http://www.tomtom.com For information on TomTom Navigator software.
Its brilliant, I now have my PDA giving me instructions of how to get to places while I drive, and its a cheap alternative to getting a full GPS SatNav system that can cost thousands. So if you have a PDA and often get lost travelling in your car, throw away your A to Z and other maps, and go and get yourself a GPS unit!!! I wholley recommend it.
GPS units are readily available on EBay and many other wonderful locations on and of the net. You can get a very good TomTom wired unit or Bluetooth, depending on what PDA you have... All I can say is shop around, cos there are some great deals out there!!!
http://www.ebay.co.uk/ and search for GPS
Happy navigating!
