What strategies can a teacher use to help parents become involved with children for literacy skills?

I need a few strategies to encourage children’s parents to get involved with their development of literacy skills.

Our school collaborated with the library and a local university early childhood literacy classes to make a file box that went back and forth between the school and the home. Each box featured one book, had several related activities/projects, and all the supplies necessary to making the activities/projects. The PTA worked with the school librarian to restock the supplies each week.
This has been going on for years and is fabulous.

Parents/grandparents are asked to contribute a favorite book to the school collection to celebrate a child’s birthday. A memorial seal is attached inside the book and the children love seeing THEIR book on the shelves.