RFS: A food/drink inventory tracker for homes

There's a startup/web app out there that I really wish existed: some sort of food/drink inventory tracker for my home. I think this will actually solve a pain that a lot of people have.

Pain: Wanting to know if you have a certain food/ingredient in your home, expiring food and the waste that comes with it, and being consious about food spending.

Demographic: Mostly families of 4+ (and especially those who shop at Costco or Sam's Club).

Well at least I know I have the aforementioned pain and that I fit the aformementioned demographic.

My family often buys food in bulk from Costco and often times we don't need all that food. This leads to a lot of waste and overspending. 

I think that an app that lets you track all the food items you buy, the date of purchase, and the expiration dates, would solve those problems. Ideally something that lets you take a picture of a receipt, enter in some expiration dates manually, then keeps it all in a nice database for you would be awesome. It would be even greater if on the app you can search for food/drink by tags/keywords and there would be a dynamically updated list on the side of "food expiring in the next 5 days" and "food that you bought a long time ago." In addition to all this, the app could recommend ways to serve the food/ingredients based off what is available, time of day, and the season.

Overall I think there is a lot of cool stuff here! And along with that, I believe that tracking all this will make people more consious of their food spending and will therefore result in spending less. 

The hardest part here is figuring out how the receipt-picture-taking would work exactly, and getting people to enter in dates manually. And also getting people to update what they just ate/used so that the food can be removed from the database or at least updated.

If someone makes this/figures it out let me know! My family could really use it.