From: Covington LA via Montreal!
By all means I also use a text editor to keep a notes file.
I also use one to write my AAR post while I do the turn. The AAR includes at least one screen capture per turn, sometimes edited to include annotations. While the AAR is unto itself, I find it often also helps me to look back at the odd fact, etc. that I included there when making plans.
Even playing as Allies, Tracker is essential IMO. I look at the Alerts each and every turn. Devices, to help coordinate the upgrading of squads and other LCU devices is a Godsend. There is lots of great stuff in Tracker.
Sometimes when looking at enemy land units it is difficult to see if a tiny movement arrow is present as sometimes the map graphic obscures it. Using a magnifying glass resolves the matter.
A calculator, because sometimes you are adding things up.
A spreadsheet. Various worksheets to add up troop and cargo space, stacking value of units, whatever you find helpful at the time.
As a new player you won't even be paying any mind to many things at first. Take it a piece at a time rather than worrying about everything all at once.
So, putting it all together:
Your favorite text editor
Greenshot (for making screen captures)
Paint.net (for editing screen captures)
Intel Monkey (Everybody should have an assistant primate)
Libre Office (includes spreadsheet)
Magnifying glass (3.5x)
Yes, that's a true list. I really do use all that stuff to play AE. Plus pen and paper, but I really don't need to add that, do I?
Wow that's some list! You really take this seriously witpqs! Ok, I'll try to get tracker working again... thanks. Hal