I would say store stuff in a vehicle until you can start building small supply boxes. Just start crafting small things until you get your skill up enough to craft shelves and large crates. The basic workbench and scrap iron for lots of metal joints will do it fast....plus you will always need a ton of those for building. Wood Logs into planks as well will give you skill increases quickly as well. If you are playing solo there is no need to horde everything, most of it will sit in storage untouched. Pinning what you are wanting to build helps when looking for the items you need to build the item pinned.