While I was finishing wireless scanner and printer server I realised that traditional document scanning approach is not so nice from UX point of view.
I really like the way office scanners in multi-functional devices work. Normally if you want to scan you just load stack of paper into and put your email address. Scanner does the rest and in minute you'll get ready-to-use pdf file in your inbox.
I was thinking about having button attached to RPI Zero which initiates scanning and document upload.