It's a new year. I'd like to get more organized with receipts and other paperwork for my small business. After reading some reviews, I was all set to buy a Doxie Go (or similar) portable scanner, when some other article reminded me that I could just use any one of a number of iPhone apps to snap receipts and send them to Evernote. Do the physical scanners offer any particular advantage over Scanner Pro, FastEver, or other scanning apps for ease of upload? (100% fidelity not required for receipts.) Which scanning app is easiest to use once you have it set up correctly? Thanks.