Looking for ways to help people around you? Here's probably the most effective and lasting contribution you can do: help them be the best they can be.
In my professional career, one of the things that make me happy and fulfilled is seeing the people I’ve managed or supported succeed. As a mother, I delight in seeing my little girl practice saying “Thank you” and all the other gracious lines I taught her. Aside from knowing that I did something good, it makes me feel great that it will help them not just for a day or a particular instance. It will help them somehow as they go on in life.
Whatever your role is – a professional or just another member of the family, there is something you can do for the people around you. And here's an article on some specific ideas on how you can do this is – Top Ten Ways to Help People Realize Their Potential « Power to Change.