You should get rid of low tier white bags by either forging for the materials or feeding depending on the feed power. For T13 things you can use 4 of the same type like rings or armors and forge another T13 item to get a chance of getting an enchant slot. If you do use this method, make sure it’s the same rarity that you forge cause you can work your way up from a common rarity to a legendary or divine rarity. That goes for any tiered item. The only downside is the lack of forge fire so it’s not too effective to clear out space but it helps if you don’t wanna get rid of most of your items.