Following on this, I encourage every strelok to look into learning the basics of GIS and acquiring a dataset of their local area. An extremely robust map can be created using <50GB, provided your local government or university has the data available. Pic related: a basic map I've been cobbling together of the tidewater region as an experiment. You can see that different cities have different data, so it's somewhat inconsistent, but it commonly includes things like military bases, emergency services, roads, addresses, building footprints, and census data (shown here to denote the percentage of blacks in a neighborhood.)
I can say that lots of people in military intelligence have massive hardons for GIS, and while a lot of that is from elderly officers falling for ESRI marketing, it's definitely a step up from doing things on Google Earth or paper maps.