A number of tips to trigger idea production...
You can make your brain crank out better ideas faster by asking yourself questions about the problem at hand or the entity / entities which you are considering.
(Image Credit khoraxis)
Expanding your knowledge through experience is a key enabler to idea production so try and get out into your local community and try out new things.
You might want to join a volunteer group or try out a new sport at your local sports centre or perhaps try out a new hobby.
(Photo Credit: San José Library)
Also consider signing up for a training course, workshop or college course on a subject matter that you are unfamiliar with.
Don't forget your local library either. Libraries are a fantastic source of knowledge with books on almost every subject you can think of.
Look online too. Perform a local search... your local community might have an ideas, inventors' or entrepreneurs' club. Clubs like this are great for bouncing ideas around and for getting some creative, positive energy. Alternatively look online for information about professions which are unrelated to your own. Best practices in one profession can often be transferred in some way or another to another profession.
If you work for an organisation and want to increase your individual idea production within your organisation then ask to see of you can do a rotational assignment in a different office, department or roll. If this option isn't available then simply wander into other departments and functions during your break times and ask people what they do.
New knowledge and experiences might just make you see things in a totally different light. Creative ideas often come from connecting two unrelated knowledge areas together.
If the ideas are still not flowing then you can always ask other people. Most people when asked love to share their ideas. Reach out to your family, friends, customers, suppliers or reach out to people on social media sites such as facebook or twitter. Alternatively offer something as a prize and run a competition for the best ideas related to your particular area of interest.
For further study see this excellent article on idea generation by Max Gunther or take a look at the creativity techniques page where you will find a number of tools and techniques specifically aimed at helping you produce more creative ideas.