The economy is not experiencing scarcity yet but I did notice lately that the range of choices for various goods has diminished. It has been three months or longer since my favorite dental floss and toothpaste have been missing on store shelves. They finally reappeared recently, to disappear again, an obvious sign of manufacturing shortage. This prompted me to check out the new sonic care air flossing gadget. The price alone could buy 40-80 rolls of floss, not to mention the need of electricity to make it work.