My wife and I set a goal to memorize the Proclamation of the Family to the World. I had read several articles on the LDS church website with regards to the proclamation and there were several accounts of people memorizing it and being blessed for doing so. As it was given in General Conference for the world we felt that it was important to ingrain its teachings in our lives, so we decided to memorize it. We missed our first deadline, but we have made it through about two-thirds of the way, and we'll plan to have it done by our little munchkin's first birthday.
I found a cool website that can turn an 8 page document into a pocket sized book that you can carry wherever you go. So, I took the Proclamation, the testimony of the Twelve Apostles of the Saviour Jesus Christ, and all 100 mastery scriptures (just the location and brief summary) and made an 8 page booklet for us to carry around and practice our memorization skills. You can download the booklet for your personal use here if you're interested, and the instructions on how to fold it are here. Hope you find this useful! Let me know if you have a hard time with the folding instructions, I could post my own if necessary.