We have heard of many different methods of breaking in your glove. Some of the break-in techniques will actually damage and cause premature wear to your new glove. To get the best performance, follow the recommended instructions of the manufacturer. All manufacturers produces a wide ranges of glove products with different type of leather and materials which may not require much breaking in. Here are some quick videos to help break in your new glove.
Breaking in a Middle Infield Baseball Glove by Wilson Baseball
Breaking in an Outfield Baseball Glove by Wilson Baseball
Breaking in a Catcher's Baseball Mitt by Wilson Baseball