Ideas are a dime a dozen, or cheaper still. Execution is what counts. I would tell you to get a soul sucking job, volunteer your time at a worth while, human helper, dogoodnik organization of your choosing or even whacking some bugs off some open source software you use or want to get to know better.

All those things will broaden your horizons, open your eyes to new problems and give you an appreciation for the suck that certain things can be and get you thinking about how to fix them.