can't think of one

Tracy,

The backtracking exercises in Healing Your Hungry Heart are about how transitional objects are everywhere in our lives.  They connect us to other people and other places.

Maybe this is a time in your life when it's difficult to acknowledge that you do have connections.

Pick any object in your home and trace it back to where it came from.  It serves as a transitional object for every step along the way as you follow it to its source.  If memories are attached to your backtracking then the object serves as a transitional object to who and what are connected to those memories.

Let us know what happens when you try.