Organic Shoppers Guide - Template and Sketch

What the basic data will look like:

Soy Milk Trader Joe's $x
Soy Milk Whole Foods $y

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Creation Functions...

enter a new item

Use Functions....

search for an item
click favorite items, then...
1 - create lists of 1,2 or 3 stores and have the items split by store.
2 - Ask which store (or perhaps 2 or 3 stores?) will allow the cheapest purchase / how much does a shopping list cost at each store.