I have been scanning my shopping now for quite a number of years and every year I have enough points to reward myself with a visa card for $150 or ,more dependding if I do competitions I find that while it takes me at least 2 to 3 hours of scanning as I have Parkinsons it is very good therapy as I have to find goods, match them on my docket.I find it is helpful when I pack my pantry as I put the scanned good into shelf groups which make it quicker when I put away.I also find any thing not charged at right price or if I have left a bag of groceries behind.