Just finished my first game, my god was that boring!
OK, I take it back

Playing second game (Mongols, continents, normal) and I've been constantly at war since about turn 5. Decided to go all out militarily and knocked out Germany and a couple of city states early on, but have since been tag-teamed by France and Persia who simultaneously declared war and I spent about 30 turns fighting on two fronts. Managed to fend off Persia 3 times and counter attacked against France, taken 3 of Napoleon's cities, just Paris left. Need it to fall soon before Persia can regroup and launch their 4th offensive.
This is more like it!

) you get an auto 4 gpt boost plus an extra 4 gpt for every civ the sends a trade route to you. As far as I know, trade routes coming in are unlimited. Not even researched banking yet (nor have I built national treasury) and I'm raking in 80 gpt. Admittedly, I only have two land military units.