We know quite a few of you have been requesting more item storage options. Producer Matsui has made an announcement about the current state of expanding inventory space:

Quote Originally Posted by Akihiko_Matsui View Post
New Satchel
Seeing as how we'll be adding two new jobs, I believe it would be nice to have a new satchel. The problem is that when users increase the amount of items they have, their character file size increases as well. As a result, when users change areas or when character file saves are processing, it becomes a tradeoff between the server getting slow versus having more items. If the server becomes slow after implementing a way to store more items, we would have to stop everything and I'm sure you can imagine what kind of problem that would be! Therefore, we are forced to act very cautiously as we move forward on this.

Currently, we're looking into implementing a satchel that will not be added for all characters, but rather characters that have progressed to a certain portion of the game.

Storage Slip
Storage slips currently store items in single byte sizes so if we wanted to make them compatible with a variety of other things, we will lose some of the simplicity of the system and the cost of storage will go up substantially. Therefore, it will be difficult to implement the suggested functions unless we were to invest costs in an entirely redesigned storage slip.

Also, if we simply continue to increase the number of storage slips, then we'll start losing sight of our goal of saving space. However, what I feel needs to be done is to start using the storage slip system within mog houses. Since Mog House Moogles are specially made NPCs, there are a few technological hurdles that need to be addressed, but I would like to start making progress on this feature starting now.