For easy and simple, surely it doesn't get any easier or simpler than:

• Write what you want on a piece of paper
• Put it in a box
• Forget about it

Source: Manifesting Experiment 1

If you now want it to come faster, it gets trickier because you are now in danger of introducing resistance because of your need for it to come faster.

In that case, I recommend you take a look at What does ‘detachment’ truly mean in Law of Attraction? for the overall strategy and then Focus Blocks (Manifesting Experiment 2) for a suggested implementation of that strategy.

Now if you really wanted to make life easy and simple for yourself, you could forget all manifesting methods completely and just Get Happy which will just as effectively bring you everything you want anyway...though, in this physical action-oriented world, I can understand why that is an unsatisfying answer to many :)

And finally, don't forget that once you get what you want, you'll only want something else anyway so what's the rush? Why not just accept that life isn't ultimately about having more and more stuff...because the stuff is only the excuse you give yourself to exercise your power of focus.

So you could always just ease up on the "fastest" requirement, decide to just focus daily (and exclusively) on whatever makes you feel good, and just savor the ride of your life :)

From Illusions, the Adventures of a Reluctant Messiah by Richard Bach (emphasis mine):

"Well, Richard, we're magnets, aren't we? Not magnets. We're iron, wrapped in copper wire, and whenever we want to magnetize ourselves we can. Pour our inner voltage through the wire, we can attract whatever we want to attract. A magnet is not anxious about how it works. It is itself, and by its nature it draws some things and leaves others untouched."

I ate a potato chip and frowned at him. "You left out one thing. How do I do it?"

"You don't do anything. Cosmic law, remember? Like attracts like. Just be who you are, calm and clear and bright. Automatically, as we shine who we are, asking ourselves every minute is this what I really want to do, doing it only when we answer yes, automatically that turns away those who have nothing to learn from who we are and attracts those who do, and from whom we have to learn, as well."

The people and other resources that you attract, by virtue of you raising your vibration and being clear about what you want, will help you get whatever you want, in the most rapid fashion possible.

The law of attraction works the same way every time for every thing that we want to achieve. The way the law works is that we must maintain the thought of what we want to have and through this we are able to attract what is desired. All the methods that are recommended are only intended to get us to the point of maintaining the thought.

The "short cut" is to express it in the simplest way that your subconscious understands. . . . . . .

why do look for short cuts