Do you keep or implement them? Just rate yourself.
If you buy a little book to write down all of your ideas, think about them thoroughly: Is one of them worth implementing?
Just ask yourself: Is this idea helpful for anyone? What would be the effect of its implementation? Is it the right time to realize this idea? Do I have enough resources for it? Whom may I ask to join in and work on it? Is my vision clear enough to realize my idea – where, when and how can it be done? If I think of the realization, do I feel power and joy?
Do not hesitate to go forward if all of your questions can be answered with a clear YES!