We all know the issue. Expansions create tons of new items and it wrecks what little space we have. Something has to be done. The answer lies in the expansions themselves. Expansions should unlock 1 additional free retainer when you purchase them. It adds just enough space to allow for all the new junk to gather, and frankly for the price of this shit it's the least you could provide.

Give all Heavensward owners a 3rd free retainer slot, and prepare to add a 4th whenever 4.0 might be.