I would like a way to transfer items between my characters on the same server. I think this is an important option because we all have the capacity to make 8 characters per server.

Currently you can only mail items to friends. You cannot mail items to yourself because you cannot add yourself as a friend. You can ask a friend to trade items to you, but players that do not have friends online will not be able to trade.

You can use the market to transfer items by buying and selling to yourself, but that makes you waste gil (tax payments).

I would like a cross-character bank or retainer where you can dump your items/gil from one character and receive them on another character. This has been done before in other MMO games and it would be a good solution here. You can keep mail restricted to friends only and people can still transfer items between characters on the same server.