Personally, l think a developer could get rich if you create the following tools for sellers of mass-produced low price stock:
1. Import postal zones
2. Import categories
3. Export orders: I would want customer name, address, and also product name, SKU, and the product packaged weight, as per the corresponding column in the CubeCart upload spreadsheet.
That vital info would allow me to organise the Export Orders csv into weight categories, and then divert each weight category