A student is visiting a large, multi-story university library for the first time. The floors look very similar, with long corridors of identical-looking bookshelves. The student needs to find a specific book in a far corner of the third floor and then be able to find their way back to the main entrance an hour later. Based on principles of spatial cognition, what is the most effective, conscious strategy the student could employ as they walk to the book's location to ensure they can easily find their way out later? Explain why this strategy is effective.