but seriously, zip codes state wide might be a bit much, i never know what zip code i'm in, there's like 10 of them in arlington alone, and who really knows where the zip code borders are? but 99% of the time i can tell you what city i'm in, unless it is H.E.B... or Farmers Branch/Carrolton/ Addison... where the borders between towns are all over the place. So being able to come home and detail all of the info on a 30.06 sign that i encountered on any given day might be prohibitive to a less dedicated informant.