This pdf is for an activity at the beginning of the school year. The students write letters to themselves, put it in an envelope, and seal it. In my classroom I hold onto these envelopes for the entire school year and then return them to the students at the end of the school year. Students are surprised, proud, intrigued, and even amused when they read their letters less than a year later. Since students often need some ideas of topics to write about in their letters, I have created a slide show that takes them through the process step-by-step.