By popular request, your last search on any map is now brought up automatically when you switch maps, or when you come back to the site later! So if you always search around your home, the site will remember that for you.
In addition, the search is done instantly for you when you visit a map. The default settings are used, which you can change and re-search. If it's your first time to the site, the search is centered around Louisville, Kentucky.
Thanks for the suggestions and keep them coming! We are also working on letting users with free accounts store multiple addresses, which can be accessed from any computer.