Resources for Spiritual Retreats?

Spiritual retreats can be deeply renewing experiences. They can be spaces of rest, relaxation, and refocusing, where you can be received as a beautiful child of God. They can be spaces in which you can come in contact with God's voice anew and dive into new and old spiritual practices, from listening to contemplative prayer to meditation and many others. And you don't have to leave your town or church; you can have a spiritual retreat in your own community, as well.

If you've done a spiritual retreat before, what have you done? What role did it play in your journey of faith? What materials, such as videos, books, and discussion questions, have you used? Have you had different resources tailored for women's and men's spiritual retreats? What worked well for you and what didn't?