We got some nice materials from the Michael Olaf catalog, as well. But mostly, we just set things up in a child-friendly way: making the rooms safe for ds to explore, putting his things on low shelves, having a table and chair the right size for him, having books in a shelf at his level, facing out. We now have some sorting trays and I am putting various items in them. Our is is almost 2, and will be starting in a Montessori school in May. He'll be in the toddler transition room, which isn't wholly Montessori, but a more gradual introduction. I imagine I will get some more ideas there. I also believe that AMS sells a booklet called "Montessori in the Home."