How many times you thought of doing something and unable to do that, here is a technique for you, to do what you want with out losing sight of it. It is called VISION BOARD. All you have to do is write down what you want on a piece of paper and stick it to the places where your interest often goes.
By sticking your thoughts in the form of visuals, it will remind you to do the things and aligns your subconsciousness to your present state. In this video Joe Vitale explains the benefits of vision boards and how they will help you to achieve whatever you want.