How to Add a Zipper to a Finished Tote Bag

How to Add a Zipper to a Finished Tote Bag

My customers are always challenging me.  One recently asked if I could add a zipper to an existing Oversized Beach Tote so that she could use it as an overnight bag.  So in my usual way, I researched, I thank (thunk? thought? perseverated?) – and over-thought it...