More importantly, it doesn't solve the larger problem of "where did my money go?" since that usually is asked over a timeframe of more than one shopping trip.

More importantly, it doesn't solve the larger problem of "where did my money go?" since that usually is asked over a timeframe of more than one shopping trip. The question is usually "How did I spend $100 more this month on groceries than i budgeted?" and the only way to answer that is analyze all of the spend together