Now that I'm in the habit of depositing checks by taking a picture with my phone, I wonder if there's a photo app that would organize photos of receipts in a useful way. Personally, I don't need the app to contain the photos because as others have said, I want them for recordkeeping, warranties, or returns, and don't want to bloat up my YNAB file with JPGs.
I'm on Android, but if I find such an app that's in iPhone too I'll let you know.
"It’s still all about the method. Fancy Cloud Sync algorithm aside...the software is there to help you become more aware (Rule One), anticipatory (Rule Two), flexible (Rule Three), and secure."--Jesse's blog, A Method to Your Madness