[asnyc]

I faced this problem, and face it on a regular basis. I get just too many ideas, I used to note them down, and the list grows bigger and bigger. The only way to resolve the issue is knowing that finding ideas is easy, but execution is king. You need to work out and analyze their potential. You need to sit down, brood over every idea and look at every angle - problem you are solving - target market (size, barriers to entry) - competitors - do you have a team which can solve this problem efficiently etc. etc.

This will definitely prune your list of ideas.

Next, you will need to discuss the chosen few ideas with prospective customers, and see if they "really" need this, are ready for this. You will need to develop prototypes, get some early customers, see how they like it.

Basically, start executing.