The problem with sorting physical objects is that it&#x27;s basically like inserting everything into a database for later retrieval, except you&#x27;re only allowed to have one index (whatever you choose to base your categories on).<p>It&#x27;s often better to scan things like photos and documents and tag them; that way you don&#x27;t have to decide ahead of time how you&#x27;re going to search them.