How about an overview screen where I can see all of my available actions instead of them being spread out on several pages?

I imagine it rather low on graphics and with a "quick attack" and "quick spy" box, where you just type the opponents name.

I also imagine the "Generate income" and "Recruit troops" buttons having a choice of how many consecutive turns you want to use on them, and not having to click up to 50 times in a row.