What is the easiest way to get a shiny Pokemon?

Well, in my opinion, although I suck at Sapphire and the rest, I do rock at Generation Four. Basically, if that game has a Poke Radar, try using it in the grass. You might see some patches shake. Run into one, and you'll see a Pokemon. Catch it, or kill it. Next, try to remember what that shaking grass looked like. Because now the patches will shake again. Go to one that looked EXACTLY like it. And that same Pokemon will appear. If the same Pokemon did not appear, your chain was broken.

And if you have absolutely NO IDEA what I'm talking about, get off your rear and go buy yourself a DS Pokemon Game! :3