How can I effectively use oak leaves as mulch in my garden to improve soil health and retain moisture?

To effectively use oak leaves as mulch in your garden, shred the leaves into small pieces to prevent matting, then spread a layer of the shredded leaves around your plants. This will help improve soil health by adding organic matter, promoting beneficial microorganisms, and retaining moisture in the soil. Make sure to replenish the mulch as needed to maintain its benefits throughout the growing season.