Be flexible and be willing to adjust your plans as needed. One thing that I found is the older you get the more set in your ways you become. So be mindful and be aware that as you get older that your flexibility may change so you may need to stay focused on being flexible and adaptable. Be mindful and aware to make sure not to become grouchy, grumpy or that you become known as having a bad attitude. After all being flexible is the right thing to do and it models the way for others.