I, too was a child of the Berenstein Bears, Paddington, Ramona Quimby, and Judy Blume books, but these were some of my favorites and most cherished:

Good Night Moon by Margaret Wise Brown

Love You Foreverr by Robert N. Munsch and Sheila McGraw
I'll love you forever, I'll like you for always, as long as I'm living, my baby you'll be...

If You Give a Mouse a Cookie by Laura Joffe Numeroff

The Giving Tree and Where the Sidewalk Ends by Shel Silverstein

A Tree Grows in Brooklyn by Betty Smith