I wonder if people know about Google's Stacks app? I don't know if it's as powerful as Paperless-Ngx, but it lets you organize docs pretty easily and some of it is automatic. I have "stacks" for insurance, id cards, receipts, medical records, etc. Whenever I get paper mail, I snap a photo and immediately toss it. I can then organize it in the Stacks app and easily be able to pull it up later. It's a pretty useful, easy solution IMO.