If your pictures look fuzzy or blurry, the fuzziness is probably caused by one of the two things.
One is that your camera/hands shook while you were taking the picture. This can be solved by using a tripod or put your camera on an even surface when taking the pictures.
The other problem and also the most common problem is that your pictures are out of focus. To correct this problem, all you have to do is to get focus by turning on the Macro function on your camera!!! It is not really a big trick but only that most people do not aware of this function. Since this is the most common problem people having, let me explain the macro function in more details.