Revorad, why think of each idea you have as a startup? Many of your ideas can be launched as a 'project' instead. A project might have the POTENTIAL to turn into a business, but most projects are not a business at the beginning unless they generate revenue with a sustainable business model.

I have launched two 'projects' recently, and both have started as video blogs. Even if neither gets traction, I will hold on to the domains and content as an inbound link launchpad for any other project that might turn into a business.

Have a great holiday season, and best wishes for a prosperous 2012 filled with project success!