Sounds like a cool idea, especially if you have need to track lots of receipts for expense reports or tax purposes. The inclusion of the mobile app, makes it easy to capture paper receipts and you can also email digital receipts to your own private Lemon.com email box to be processed. First seen on Mashable,com Lemon Quick Pitch: Lemon gives you the tools to collect all your receipts in one place and analyze the data in a simple dashboard. Genius Idea: A personalized email address for shopping. Chicago-based startup Lemon aims to be the single place where you store and manage all of your receipts — whether they be the paper kind collecting dust in your wallet or the electronic variety lost in your inbox. After operating under-the-radar for several months, Lemon officially launched its web and mobile receipt system to the public last week. It has managed to attract more than 100,000 registered users who are already using it to pluck receipt data off the printed or digital page and place