Jump Start Your Era

General

Train lots of explorers (in case of Trinity this shouldn't be a problem, if you're Genesis/Rift you can have 800, 1200 or even more explorers/foot soldiers) and explore your land as fast as possible
Try to reach the Chests as soon as possible (for exploring tricks see Exploring)
Put taxes at 40%
Don't buy ToK techs unless you really need/want them
Vault: Dump 15k gold in the vault with the character that will not be jump starting. The jump starter can take those 15k out as you start with 15k limit
Train as many troops as you can, try to reach the important units in the unit tree asap (mostly heal/trample/negate units) and go out on war as much as you can. Certain targets will give you bigger spoils compared with others
Influx and other items can help you as well

Rogue: Get Clark (Divine Power) fast to do Steal Gold ops. You might as well want Headbasher Academies (ToK) and Steal in War (Divine Power) to gain more spoils in war
War Master: Get Rob Peassants (Divine Power: Offensive Strategy - Alexander BloodBath) to gain more Spoils in war
Merchant: Influx, Dryad Silicon Breasts and other items
Wizard: Get the Book of Chance for Greedy Buddy asap