Also -
Dolores Claiborne from the book of the same name and Jessie Burlingame from "Gerald's Game" have quasi-out of body experiences where they both see each other in their minds during the solar eclipse of the summer of 1963.
"What person who is nothing like me are you saying that to?" - House

I love it when Stephen King does this too!
At the beginning of "Rose Madder", Rose reads "Misery's Journey" by Paul S.
Norris Ridgewick from "Needful Things" has a cameo at the end of "Bag of Bones" (book, not movie).
A character even asks Norris how Alan Pangborn and Polly Chalmers (hero/heroine from "Needful Things") are doing.
"What person who is nothing like me are you saying that to?" - House

Yeah, Stephen King stories are connected like that. In his story, The Library Policeman, a librarian says this: "Naomi is a regular. She borrows a great many romance novels - Jennifer Blake, Rosemary Rogers, Paul Sheldon, people like that.' She lowered her voice and said, 'She says they're for her mother, but actually I think she reads them herself."

WHAT?!
wait who was this? The couple who dances?

You mean the rope skipping kids Jake/George encounters in Derry: Bevvie from the Levy & Ritchie from the Ditch-y? That was her?

Exactly, i love it when King does that. The best part was when in 22/11/63 the main character is meeting Beverly from IT just a few months after they killed IT.

Yes. In the novel Annie and Paul discuss a former victim of hers who was an artist and wanted to draw the place the Overlook hotel used to be before the "janitor got mad and burnt down the place".