Shopping list - Master list, copy/move items between list, total estimate showing inside list
The shopping list right now is great, IF you know beforehand what the prices already are. However, unless you are using this feature in-store, this means that you would need to keep a list of every item you usually buy, and it's price - making the estimate on your shopping list useless. You don't buy every item in your pantry every time you go shopping.
This is where a Master list would come in. When you're making a new list, you could select items from the Master list and copy them to your current list.
Additionally: Currently the shopping list shows the total estimate in the lists view, but when you click into the list, it doesn't show you that same estimate. IDEA: have a running total estimate inside the list - one for the whole list, and/or one that updates as you check off each item. (The one that updates as you check each item so that if you are low on money you can prioritize what to buy by checking/unchecking different items).