hmmm, smoothies at my house generally involve a handful of ice, a big dump of plain yogurt, a dash of vanilla, some spices (i'm a nutmeg superfan, my bf hates the stuff...all the "pie" spices like nutmeg, cinnamon, clove, ginger really bring out fruit flavors), a squirt of honey/honey powder/demerara sugar, and the fruit. no juice, definitely no soda. to get it really thick, use frozen fruit - waiting for bags of the stuff go on sale at the grocery store is a great plan. buying spotty bananas, like gadzooks said, or grabbing any past it's prime fruit on the sale rack to freeze is another great idea. when the blender is going and all things are blended, if it looks too liquidy, toss in ice cubes one at a time. the cube that makes the vortex vanish for just a sec means stop, it's perfect. yes, ice cubes melt and they'll make it watery later, but if you're only making a few glasses worth, or you don't have your fruit frozen, the texture is lovely anyway.