Idea: A shared location based shopping list between friends, family, roommates.
Situation: Whether it’s my dad or me going to Costco, we buy items that the other needs also. When either of us steps into a costco we get a pop up of things we need to buy that either of us had created.
Resolution: Fancier shopping list. He gets instant reminder of things to buy without calling home. Easy to remember to add to list and list easily accessible.