Someone needs to do this. I am looking for exactly the same thing!!!
I would pay of an extension like this!
i need something identical and just ordered this customized module to a freelance magento coder. it shall be ready by the end of august. if you’re still interested PM me, i think i’ll sell it for 49 dollars as it cost me already 300 dollars to get it coded.
it will do exactly what you say, as i needed this for a client with an online grocery store and he wanted an “express list” for his customer where they can visit the next time and also in order to not forget anything.
Additionaly, we’re trying to have it look a bit like this: http://bit.ly/2kOuLM meaning with a numeric stepper and quantities on each row and a bulk add-to-cart button for all products where qty > 0
i’ll keep you posted as this requires core modification of magento, and a simple extension is not possible, even though we’re trying to achieve it.