Often, I will think through what my character will be for a few hours before actually starting to play, and ponder for several minutes at some decisions. When I'm familiar with a game, I roleplay a lot. I wish I did it less, because I would be able to play more, but then... I can't because otherwise, it wouldn't make sense, and everything would be unreasonable, and the world doesn't work that way, and the game shouldn't allow that, and how could I be in House Telvanni and in the Tribunal Temple, and AAAAARGH!
I also use Excel in some games as a support, but that is because I want to play perfectly. Actually, several times, it was so complicated in Excel that I decided it was simpler to code a Python script from scratch to help me, then input all the data... and then start playing. (The worst was for general/unit management in Hearts of Iron III. Finally, the script was so complicated to manage that I decided to play something else.)