[Stone Mill]

True... trades work that way, but they don't save you time. It actually takes 3 turns for the exchange, 4 if a counter offer is made:

1. offer
2. acceptance
3. execution

In simultaneous games, it is best for two allies to give gifts to each other on the same turn, and receive each other's gifts on the next turn (simultaneously). This way, you have a 2-turn constant exchange cycle.

Tip: Establish a quick rule: Give gifts to each other on odd turns, receive on even turns. This way, you won't get stuck needing to offer a gift the same turn you need to receive, or vice versa.

Hope that helps a bit.