We do reading lists... Last year (first grade) they had a goal to read 100 books by some date. They defined a "book" based on the grade so for first graders if it was a chapter book, then every 20 pages counted as one book. They also sent home a reading list of suggested titles for the summer and a list for tracking so we just continued the habit. DS likes to read *A LOT* so we don't have any motivation issues with reading. We give give rewards with some bigger milestones but not consistently.
Now, we're lucky in that DW has her doctors in literature so she'll make sure that the kids all hit the classics when the time is right.
JB