I think that, with all the decorations available in-game, the hoard can get far too messy far too quickly, making it difficult to find the specific ones you want. I propose:

A) Pre-made tags you can search for within the decorations tab, such as "Event Decors", "Explore Decors", and "Crafted Decors".

And/or...

B) Customizable sub-folders within the decorations tab that you can name and sort decorations into manually. Perhaps the player has to purchase each folder, or even craft them with some of those leftover den-crafting supplies.

Suggestions are welcome and feedback desired. Please tell me I'm not the only one a little bothered by the messiness. XD