One of the first things I did to help me accomplish this was to create a custom Google Map of all the places that I needed to visit (I am a computer and map nerd, you know). I’m embedding a copy of that map here in case it is useful for someone else. This is what the principal battles of the Civil War looked like, geographically:
I’m pretty good about updating the map as I go on trips. Sites marked in green have been visited at least once, while sites in red are on the to-do list.
Full disclosure: I created this map myself based on a best guess of where several of these battlefields are located after looking at the CWSAC reports and various other resources on the web and in books. There may be inaccuracies on sites I haven’t visited yet. No warranty, and your mileage may vary. 😉