If a trip to Starbucks is as much of a morning ritual as showering and blow-drying your hair, you might find this advice crazy, but health experts like Gregory J.E. Ladas, author of the book The Couch Potato Diet, say it will not only save you money but possibly hundreds of calories. When you brew your java at home, you “avoid the unhealthy temptations at coffee shops like doughnuts,” he says. And who hasn’t fallen for a sprinkle donut or a piece of fat- and calorie-laden pumpkin loaf?