We’re always looking for ways to get more for our money -- a great sale here, a price match there. But what if we could give as well as get at the same time, and without any (or with hardly any) extra effort?...

When our local grocery store installed the first two Self-check cash registers I was impressed. I thought how techno savvy the grocery store was getting. I could not wait to gather all my groceries and try out the new...