How do you get money in Chrono Trigger?

Can you elaborate on the methods to acquire currency in the game Chrono Trigger? Are there specific quests or battles that reward players with significant amounts of gil? Is there a way to exploit the game mechanics to accumulate gil more efficiently? Additionally, are there any items or strategies that players can utilize to enhance their earning potential? Understanding these aspects will undoubtedly improve the gameplay experience and progression through the game.