Problem With a Big Dog

We knew when we got him, he wouldn't be small. But we really didn't think he would get this big. He's not our neighbors Husky by any stretch (150 lbs). But he's a good size pup. Here's my list.
7. he eats, and he eats a lot.
6. he's tall enough that he doesn't have to get up to get things off the table, he just has to lick.
5. he knocks the baby over if she is where he is walking.
4. The glass on the sliding door it dirty 5 feet up.
3. he drags you down the street when on a leash
2. He's always rubbing that wet cold nose on your arm as he walks by.
1. I am always stepping on him. He has become part of my entourage. 5 of 5, 4 of 5, and the dog. The are where I am. Always.
So far, he's a good dog, he tolerates 4 of 5 really well. even when she is riding him, or pulling on his lips and ears. He stops doing what ever he;s doing if you say no. He goes out side when you tell him to. We're still working on stay, and lay down. But he can sit. And, he barks when there are people out side, and not any other time , except if he's chained. Which doesn't happen now that there is snow on the ground. It's frozen so he can't tunnel into the neighbors yard, and the chickens don't venture out.