[Lists] Proposal for additional fields for shopping lists

[aleksejrs]

Useful data for the shopping list:

• Stores.
• Price per item per store.
• Size of an item.
• Price per weight/volume (e.g., kg, l) per store.
• Quantity of units to buy.
• Total weight and price.
• Time when the price is valid in each store.
• Notes (like in which particular stores it is available, according to the store chain's website).

[teolemon]

Could you perhaps create a Wiki page about this ?