Hey Mayoyama,
This is a great idea and we can certainly understand your request for more room to decorate your Mog House. As mentioned in the
Storage Woes: Fat Chocobo thread the development team is looking into ways to add more inventory space that would allow users more decorative freedom. However, since furniture, equipment, or consumable items take up the same amount of space/memory, we don't want to restrict the use of this valued storage upgrade to just furniture items. Therefore, if we are going to increase the total amount of inventory or storage slots, we would like to provide players with the freedom to use this new space as they please.
There have also been some calls for separating gardening from furnishing. Unfortunately, the pots and other things involved with gardening are managed by the furnishing system, so we are not able to separate these two elements at this time.
Finally, we saw an idea about turning furnishings into moogle slips or key items. These systems were set up based on the idea that several types of items or combinations of specific items would be remembered, so it's not possible to apply it towards physical items.
Currently storage has deep roots weaved into the item management system, so steering away from this setup too much would make item management increasingly difficult and time consuming.