Finally Friday

After talking to my friend Laura, I had an idea.
As a new mom to triplets, she barely has any time, even to cook (and she's an awesome cook). Part of the issue is keeping a stocked pantry.
So the idea:
Put a recipe book online.
The website would have a feature to allow you to plan your week or two weeks meals from the recipes in the book.
Another feature would be to generate a grocery list for that time (so if a recipe calls for 1 cup of rice, but you plan to make the recipe 4 times, you need to buy 4 cups of rice).
If you have a smartphone, create an app that lets you see your grocery list wherever you are. You could also use your phone to create your meal plans. If meal planning takes 30 minutes, but you don't have that time, you could save your progress (say five minutes worth of planning) and come back later.
For a fee, the website could offer to have someone buy the groceries for you and deliver it to your door.

The best idea for the book that needs to be in this format: slow cooker recipes (in the style of fix it and forget it).

I bet there's something like that out there but I haven't seen it.