There are many courses you can take, which can help educate you regarding different aspects of innovation. When lack of time and money are important factors, a MOOC platform may be advantageous. MOOC courses offer free options or are very low priced and can be studied at your convenience. Coursera and EdX offer some very good courses from top universities.
Some courses I can recommend include the following:
1. The Iterative Innovation Process – MITx – 3.086x, edX
2. USER INNOVATION: A Path To Entrepreneurship – MITx: uINOV8x , edX
3. Creativity, Innovation and Change – Pennsylvania State University, Coursera
4. Design: Creation of Artifacts in Society – University of Pennsylvania
As well as providing you with skills, these type of courses can connect you with people all over the world.
It would be nice to hear of any other courses you could recommend.