Don't stop ? OK, here's a noob suggestion :
In an unit datasheet (the one you have by rightclicking the unit and where you see it's characteristics like str, def etc...), show also the upkeep cost and the supplies it eats. Same thing on an army screen, it would be nice to know the global gold/supplies upkeep of that army.
Also on the province information screen, It would be nice ro see how many supplies that province can prodice per turn.
That's of course if the interface is similar to dom2
.