Note: The correct telephone number is (781) 316-TREE (8733). Treehouse Kids is the reincarnation of the former "Three Lil Birds" used clothing store in Arlington Heights. But Treehouse Kids is much better. The interior has been freshly painted and brightened up. There is a great playspace for kids so parents can shop without worrying about bored toddlers. The store focuses on "gently used" top-end clothing in sizes 0 up to about age 12. In addition to the used clothing, Treehouse Kids offers an extensive line of new, environmentally-friendly Liberty Graphics teeshirts. (See http://www.libertygraphicstshirts.com/ for the products.) The only thing that keeps this place from being perfect is the limited space. But even in a small store, there are still treasures to be had.