Lemon backs up your entire wallet on your smartphone

In the past, losing your wallet was a nightmare. The fear that someone would go on a spending spree with your money often caused frantic calls to banks and credit card companies to cancel the cards in your lost wallet. Digital receipt startup Lemon seeks to do away with the drama with its mobile app that backs up everything in your wallet, receipts and all. The company announced Tuesday it raised a $8 million funding round.

OneReceipt mines inboxes to make sense of receipts

Our inboxes are a treasure trove of digital receipts, forever lost beneath the weight of spam and cheesy e-mails from your mom. New York City-based OneReceipt hopes to take advantage of that valuable data with its new receipt tracking service, which will help you keep better track of your online and offline purchases.