Once you have all the gear you need, you can use JP to buy vendor mats in Shat. 4k JP and 4k HP to buy another 2.5k JP is like carrying around an extra 200g without taking up any extra bag space. Just keeping trading them in as you get close to capped. As for gold generally, anything expensive that stacks. If you can buy it with exalted discount, you obviously lose less gold.
Once you have all the gear you need, you can use JP to buy vendor mats in Shat. 4k JP and 4k HP to buy another 2.5k JP is like carrying around an extra 200g without taking up any extra bag space. Just keeping trading them in as you get close to capped. As for gold generally, anything expensive that stacks. If you can buy it with exalted discount, you obviously lose less gold.
Unless I'm wrong, everything sells back for 25% of what you paid for it.
Just find something that is easily accessible and stacks well.