I'll be 66 Nov 2016. My wife will be 66 April 2017. I plan on working to age 70 and file for benefits at age 70. I am the major wage earner and my work insurance covers both of us. My wife is collecting disability benefits and is working part time. Two questions: What is the best strategy to maximize my social security and does my wife have to file medicare part B when she turns 66? I am thinking about the restricted application for my self, but I need more information.