The fuss of hauling out a heavy blender can be discouraging, especially for the time-challenged. And it may be overkill for smaller jobs. Just fill one of these interchangeable cups with ingredients, attach the blade to the top, flip and twist. In 10 seconds you’ll have your smoothie, ready to go in its own glass. A great blender to bring to work or on trips, too. Choose between electric or battery operated. $55 at Target.