Here’s a quick reminder: U.S. Postal Service rates will increase on Jan. 22. The cost to mail a letter weighing one ounce or less will go up from 60 cents to 63 cents. This week is a good time to buy stamps since the USPS now uses the “Forever” stamps. They’ll still work after Jan. 22, and you save three cents each.

Have you seen the videos of an individual approaching a shopper offering two choices? The shopper can have $50 cash or choose to give $100 cash to a random shopper. In most cases, people choose to give away the cash. The random people chosen are often mothers with small children or...