When you marry your dream guy, you’re marrying his entire family. Before saying ‘I do,” include your mother-in-law in the planning process a little bit, so that you can start getting to know her. She’ll feel like she’s part of the wedding and you’ll get to bond before the big day. If you’re nervous about taking the first step, here’s how to get started.   Chat about wedding tasks. Call your mother-in-law and discuss what wedding tasks she wants to …