2) Keep all monster parts, don't sell them unless you're desperate for zenny. (teamworkcast.com)
You should also check the investigations that you can do because they often reward you with a huge amount of Zenny for a short period of time. (twinfinite.net)
Go back and fight weak monsters from earlier quests using your high - level gear, and you can get 10,000 + zenny in a few minutes. (cheatcc.com)