One submission per project group. Usual format for submission. Usual late policy. The favorite part of grocery shopping for my 5-year old is the food samples they hand out.
Many families maintain a single shopping list used for purchasing most of the family groceries.
To facilitate on-line ordering, suppose there is a central electronic list that can be updated from any family member's PWD anywhere, anytime. Also assume that when the list is executed, different items may be purchased at different stores.