I can't imagine a life without creativity. Find what chases the hours away for you and go after it. While I have many outlets that don't directly impact my work, like woodworking and metalwork, these outside pursuits lend to creative problem-solving abilities. But some of my pursuits do help me be better at my work.
Writing for one. Photography another. And while I wouldn't consider myself a Graphic Designer, I am what I call a Production Artist in design. This has led me to do my own web development (WordPress) and create materials and content for print and digital distributions.
I am proficient in most Adobe Creative Suite programs, especially in page layout and image manipulation. I also know my way around Illustrator and Premiere.
In the past few years, Photography has moved to the front of the list, benefiting my work enormously and changing how I look at what's in front of me. I'm starting to look for the quiet moments more and the unexpected.