How does everyone use their first few GPs? If I can build a bazzar I will get a Great Merchant asap. Getting all that gold from a trade route makes a colossal difference. It lets me invent religions, get a wonder tech first or go for catapults quickly. Next I like to get a golden age or 2 at the time that Im doing the second round of revolutions, beurracury, religion, free church, private, etc. You can save a lot of turns if you time it right. Plus the economic benefits of golden age decreases the longer the game goes on, due to buildings greatly increasing the rate of resource consumption. Having a great religion building founded next makes a big difference. Academies are awkward. They make a smaller difference in the short-term than other GP uses, but that lasts a forever. If I don't build any I really notice it.