What are the best practices for maintaining and prolonging the lifespan of guitar strings?

To maintain and prolong the lifespan of guitar strings, it is important to regularly clean them after playing, wash your hands before playing to reduce oil buildup, store the guitar in a case when not in use, and avoid excessive bending or stretching of the strings. Additionally, wiping down the strings with a clean cloth after playing can help remove dirt and sweat that can cause corrosion.