It is a common misconception that to serve the community you must pick up trash or visit a nursing home. While those acts of kindness are amiable in their own right, community service stretches far beyond such cliches. There are many opportunities for you to use your skills in a fun, interesting way. Volunteerism is in museums, libraries, zoos- everywhere. If you're still not convinced, start your own service project for a cause you care about.
The common excuse for not giving back is that we just don't have the time. Let me just say that a child dying from leukemia or a wounded soldier didn't plan on spending so much time away from hobbies or jobs. By reaching out and lending a hand, whether that be through hours of work or just the flash of a smile, you are seeking a reward much deeper than achievement obtained through work. When you help soemone, there's a feeling in your gut that feels absolutely right. Time will wear on, but that feeling will never leave you.
Moral of the story:
No act of kindness, no matter how small, is ever wasted.
Aesop (620 BC - 560 BC), The Lion and the Mouse
