A simple tool to be effective as a startup is to define outcomes, physical actions and priortize what you do and what you build. Ensure you are making the best use of your time by doing those things that help opportunity to grow.
Startup planner makes planning a startup easy and fun. Startup Planner helps you with both strategic and tactical planning. Startup Planner comes with examples and guided steps to hand hold you from just an idea in your head to a strategy on paper.