The moon is typically about 239,000 miles from the earth, however as it orbits it travels in an elliptical path. One side of this path is closer to the earth then the other. Its furthest distance, called apogee, is approximately 252,000 miles and its closest distance, called perigee, is approximately 222,000 miles. On March 19th, when the moon was full, it was almost at perigee. This happens only about every 18 years, the last time the full moon was this close to earth was March of 1993. So if you got a chance to go out and look at the moon on Saturday it looked about 14% bigger and 30% brighter then the full moon when it is at apogee. Unfortunately it is difficult to tell the difference in size and brightness from pictures. The best time to take pictures to demonstrate the size is when the moon is at the Earth's horizon and it can be seen in comparison to objects on Earth, such as trees and buildings. Clouding skies prevented me from getting some shots when the moon was setting so I guess if you missed it you will have to wait around another 18 years to get a chance to see it for yourself.