I think this would go better in a feature suggestion thread, but since there doesn't seem to be one anymore...
I was thinking, since Gaia still hasn't made any kind of bank (no-interest bank) to store gold
how about making a cashable item?
for example, a poker chip. It could be a completely equitable poker chip for you to hold in your hand (or not, not sure if that is possible with the following) , or maybe a stack of bills, etc except it would have a function
when you click on it, you have the option of "storing" whatever amount of gold you want in it.
You can stash your gold away for a rainy day, and when you need it, you just "sell" it back like a regular item and get back the gold you stored. That way, unlike with regular items, you don't have to put it up in the marketplace and just hope it sells for the amount you want
I think of it kind of like the gift box feature, where you click on an item and get store that item in a gift box, ostensibly to give it away, except you are click on the item/poker chip/bills and storing gold in it instead.
so it would be a bit like a bank, you get to store your money out of site, but as an item ^^