There is no simple way of doing anything. All things worth doing take some amount of effort and the quality of the goal persued is most often directly dependant on the amount of effort needed to achieve it.

Also, in relation to strictly lucid dreaming: because attaining lucidity takes certain manipulations of the subconscious (to realize you are dreaming with any such techniques) or effort with "Wake induced lucid dreaming" there really is no "fast" and "simple" way. Perhaps some of the methods may seem simpler to you than others but unless you have all the right prerequisits I doubt a small amount of effort will be enough.