Corduroy by Don Freeman is the first in a long series of picture books about little teddy bear. In this one he's living in an apartment store, forgotten on a shelf long enough he's lost one of his buttons. This book is part of my childhood!
Where in the World is Carmen Sandiego? Who doesn't remember this? It was a staple for me on TV, I played the computer game, and I remember my grade school hosting Carmen Sandiego competitions with the different teachers and classes.