Don't nag. He's getting too many chances so he doesn't have to comply the first time.
Make sure he knows what is supposed to happen. If he doesn't want to get ready for school, fine. What's the worst that could happen? You'd have to drive him, right? So tell him that he can get ready when he wants to, and let you know when he's ready. Remind him that school policy (not yours) is that late arrivals have to check in at the office, so when he goes in, he can sit down with Mrs. X the principal and just explain why he doesn't think he needs to be in school on time. That worked like a charm with my son.
If he doesn't brush his teeth once, okay. But there's no dessert in the lunch box. No socks and shoes? Okay, he gets on the bus with his slippers on. Or if he's too big to physically put on the bus, then he goes in by car and explains to Mrs. X why socks and shoes are a big problem. He won't wear a coat? Oh well, then he sits inside in the office during recess. And it was HIS CHOICE to not wear a coat or mittens, his choice to be miserable. Actions have consequences.
There's a book that was popular some 15 years ago with parents of teens and tweens, something like "I hate you. Can you drive me to the mall?" The point is, kids are defiant for about 15 minutes until they want something. In which case you CALMLY say, "Sorry, I can't do that, I'm busy cleaning up the dishes you left." You have to take the frustration and anger out of your voice - your attitude has to be that he is old enough to know what to do, and old enough to know what will happen if he doesn't do it. I'd take the batteries out of the remote rather than take away technology - then hide all the other batteries. When he wants to use the TV, he can't, and you can't do the batteries because you have to clean up the dishes and make the lunches and put the boots away. Convince him slowly that many hands make light work, and that he will get far more privileges if he cooperates than if he doesn't. You can't police him all the time, but if he's doing things behind your back, you have to prevent that by taking away the tools (remotes, passwords) or the rewards (hiding snacks or treats, or "forgetting to buy" stuff because you were so busy putting boots away. The main thing is to go on with family life and stop letting him dictate everyone else's behavior. Take away the control and make it more inconvenient for him to be a pain in the butt. Right now he's getting tons of attention. Take that away.
Bottom line - kids who sneak and lie are not trustworthy, and untrustworthy kids don't get as many opportunities. Just say, "When you're older and more mature, you can do that. When you are older, I can let you do things unsupervised. You're just not there yet. When you are ready to be trusted, you will let me know."