GrassStrip, I agree with dublinpilot: "I think we all have problems locating and identifing small airfields and vrp's that we haven't been to before, so don't be too concerned about that. "
I don't like the idea of you constantly referring to a GPS to make position reports etc. But the idea of purchasing a small, relatively cheap unit to use as a backup for keeping track of your DTG, etc., makes sense.
I don't own a GPS myself, but will probably purchase one soon, as my wife is uncomfortable going x-country without one.