How to find a cache once you're close
As you get closer to the cache site, the GPS will be less accurate for direction, but still pretty good on distance, provided you have a clear view of the sky. Someone suggested a technique that really seems to work well.
As you get within 60 feet or so of the cache, memorize, write down, or have your buddy remember the last three decimals of the N/S latitude. Then on your display screen of the GPS, have it show your CURRENT position (not the Cache's lat/lon). Move North and South (following your compass) as much as possible until you are on the exact latitude. Then do the same with the longitude - moving only East or West, while staying on the same latitude.
This takes away having to rely on the "go to's" directional capabilities, which diminish as you get closer to the destination. I've tried this a few times, and it REALLY helps!