Oh, gosh, you're right. I always just pack up my laptop/phone, take it to the library with me. I upload photos from my digital camera to my laptop. I guess if you're using your phone, just submit through eyes on?
However, if you still HAVE the receipt (and I always do!), the helpful folks at the library will scan it for you, or help you scan it.
Thank you, Bill & Melinda Gates, for giving our local libraries this awesome equipment!!