"The Interrupt Rule - Genius idea to teaching kids how to get your attention appropriately without interrupting." We started trying this and IT WORKS (WORKED). It took a couple tries, but lil'fluffy started to understand that we would get to his needs ASAP. Bloody Genius.
Free Printable! Ask the same 20 questions year after year (1-18, but probably age 3 or 4 is a great age to start) and see how your child's responses change year to year. Makes a great keepsake to give to them when they turn 18.