I mean, i hoard litterally everything in extreme abundance regardless. But stone is easy to get.. esp once you can smack down golems like they are nothing or knock over the giant stone pillars in the plains. Its also a huge byproduct of silver mining in particular. But if i recall copper mining dredged up quite a bit as well.

The one thing i regret tossing? Eyes... i never thought i'd need more then a full iron chest. But here we are. Content updates can drastically change what is and is not consumed. So its best to just enbrace your inner hoarder and save everything.