The students you've become fond of, the faculty members you bonded with and learned from, and the halls you walked every day have all become, in some small way, a part of you. This is what they had to say. When I left my student teaching experience, I created a portfolio of all assignments, handouts, or bulletin boards that I created. I put this in a binder and brought it with me to my first job interview. I also took a photo of each class to look back on.
Many districts now require a portfolio from applicants.
Early in your student teaching begin collecting lesson plans that were successful, photos of bulletin boards or centers you created, samples of student work and even a log of how you dealt with a difficult student. Video lessons are looked at by some districts so be prepared if this is required. Keep examples of student work. Keep samples of lesson plans and unit plans. Save everything in a portfolio so you have something to show and talk about during an interview.