I take a picture of important documents,receipts, and tax info and upload them to the cloud. It saves time when I have to pull up a documents or do taxes later

I take a picture of important documents,receipts, and tax info and upload them to the cloud. It saves time when I have to pull up a documents or do taxes later on. It beats having to sift through mountains of paper. So to answer your question, a phone with a good camera and a unlimited data plan