I know this day is traditionally about honored veterns of wars and national conflicts most of which have left us to remember their committment to our freedom and survival, However I have personally chosen to focus on Grandparents. They deserve a day or greater. Without them we would not be here. They paved the way and raised and taught our parents. Many have joined the rank of ancestors. The history they represent, the historic moments they have witnessed, the sacrifices they made should be officially honored and remembered.
Memorial is the best time to do this. The picnics, graveside visits, and shopping sales can continue however during the course of the day take some time to do something in the memory of your grandparents that have past into the void.