The Epson ES-C320W is the scanner that made my paperless dream real. It's a stand-up duplex sheet-feed scanner about the size of a football — takes up less desk space than a Kleenex box. It holds 20 sheets, scans both sides simultaneously, and dumps them wherever you tell it: folder, email, Dropbox, OneDrive, OCR'd PDF.
I digitized a literal filing cabinet in two weekends with this. Birth certificates, old tax returns, insurance docs, car titles — all searchable PDFs now, all backed up. The physical copies went into one small fireproof box instead of two Bankers Boxes in the garage.
WiFi direct to your computer or phone. No USB cable required. Epson's ScanSmart software actually works (this is rare for scanner software). If you have paperwork piling up, this tool changes your life in a specific, satisfying way.