I can't find any videos for you at the moment, but if I do I'll edit this post.
Some advice I can give you to regularly 4-stock your non-compeditive opponents:
1) Scrubs tend not to tech anything. Use this to extend your combos to rediculous lengths. If you're a Marth or CF main, you already know the fury unleashed by a missed tech. If you aren't a main of ether, read up on their missed-tech punishing game, learn the basics of that in-game, and deliver to your opponent a healthy serving of ****.
2) Scrubs don't DI. If you're one of those characters with a pseudo-chaingrab (like Marth or Falco), use them. Your nub opponent won't know that all he has to do is tilt his controller away from you to escape. If you have a true chaingrab (like Marth's uthrow. There ya go Emblem
), even better! Chainthrow without worrying about following DI. Marth can EASILY 0-death fastfallers if they don't DI anything.
3) Shiek and Fox are the noob-slayers. Shiek can dthrow -> anything against almost any non-compeditive player, as they'll never DI the throw, or any of the tilts that follow. And of course, Shiek has some downright evil chaingrabs that a noob won't know how to escape at all. Fox's waveshine combos will never get DIed ether, so you can carry them out for a really long time. Your upsmash will kill at extremely low percents too, due to (again) lack of DI. Waveshine -> grab -> uthrow -> uair = a lot of easy damage.
4) Most noobs will roll away from you every time they land on the floor. Chase this and keep grabbing. If they catch on and start get-up attacking, shieldgrab them. No noob will think to do anything like stand -> shine to escape. If they DO simply stand, chances are they will immediately roll away from you. Chase and grab again. You can carry very long techchases on people not experienced with them.
5) Many noobs have a pair of flaws that work together much in your favor: they love the dash attacks, and they don't use grabs. This means you can shield any time you want without fear. Shield any time they run at you, and as long as they keep dash attacking, you can keep shieldgrabbing. If they start to grab, wavedash back. It'll take them a while to catch on to how you avoid their attacks, so you don't have to mix up your style very often.
6) MOST IMPORTANTLY: Don't mindgame yourself out! What I mean by this is, don't be more tricky then you have to. If they try to recover by illusioning through you every single time you put them off, then there's no reason to do anything other then fsmash them out of it. If something works on them, keep repeating it as long as it does.
I hope that wasn't too long