So my advice would be to let go a little bit. Sure, more storage would be nice. But until they tell me im getting more storage, im doing my best not to hoard things i dont actually need. I generally dont keep stacks of anything i can get back in less then 10 minutes. Ill make an exception for anything i use daily, but the exception expires when i no longer need something that often. As a result ive got about 1 inventory tab worth of crafting mats stashed, and the rest i gather or buy when i start a crafting project.