Well for one thing, if you go through all the steps you mention, you're car won't accumulate much dirt or dust, well it will, but its easier to get off and won't "bake in" as you say. Also, people do that because well, its the proper method and way. No offense but based off how you describe you wash your car it sounds torched. just rubbing a dry microfiber towel, or a duster on weeks of dirt isn't going to do a damn thing, you're just raking crap all over your car. i have had even the crappiest of waxes last months, because i machine polished the surface prior, i didn't just use a hose, one wash mitt and a bucket like you then slap wax on. if youre going to do the job, do it right. You seem to want short cuts, you won't find that amongst the enthusiasts here. And honestly, its not your "wax" your wax is fine, its your entire preparation process that makes your wax suck.