The medical software "Medisoft" had automatic completion for zip codes. Once a zip code and city/state has been entered it is remembered so the next time you enter the zip code, the city/state is automatically completed. It's a handy little shortcut. In Medisoft the curser automatically jumps from the address line to the zip code, and if the zip entered is not recognized then it flips to the city/state field for completion. Just a thought!
Shawna Pierce