"Hi, my name is Christina," I say.
"Hi Christina," the chorus replies.
"I am a mapaholic and have been my entire life . . ."
At least that is the joke I tell to some folks.

Today, I found that there is a web site (of course) for the USGS - that is United States Geological Survey - where I can search and download, in PDF format (thank you Adobe), current and historical topography maps for the entire United States.
I am floored, and happy, and able to evaluate those sales a bit more thoroughly.
I do love my work.