I know that improvements to player houses are planned, and one of those would probably be the ability to place tables and shelves. For now, most homeowners are happy to use golf bags or boxes to store things.
Herbalists in particular benefit from a permanent storage such as a house - a place to keep all their sachets and leaves.
How about a new item, available from Hold it Right there, called a "heavy-duty crate" or "A massive trunk" that weighs a lot, is impractical for most people to carry, but which has a big max-item value (like, 50 or more, perhaps). These would be perfect for herbalists, and makes more roleplay sense than having golf bags as storage devices everywhere.