Attend trade shows and professional conferences. These are excellent learning tools and have the added bonus of networking opportunities. Ask for opportunities to learn new skills and at the same time try going out of the comfort zone. Many companies will pay for university classes or seminars. If not, go on your own.
Community colleges are excellent, low cost vehicles for education.
Develop a career plan. It does not have to be cast in stone, but the visualization and the writing bring focus. Continually re-evaluate the plan and find someone bright and trusted with whom you can review this. Be conscious of trends in the economy and in your particular industry. If you are not the lead dog, the view never changes.