I joined AARP more than twenty years ago. As I have found more uses for that card, my body has found more ways of telling me it does not want to bend that way any more. Putting on shoes became more and more of a test of ingenuity.  Shoe horns help.  I tried lots of them.  I recently took inventory of my shoe horns and I found eight, that were not like this one.  I know I have had others too, and thrown them away.  Too flimsy, plastic cracked when I tried to use them with a really reluctant pair of loafers.  A long wooden one that was also the handle for a small clothes brush.  The brush worked great, but the shoe horn on the other end was too narrow  and too thick. I found I still had 'the eight' when my wife asked for help with a new pair of shoes she had just acquired.  Some of those worked ok, but the narrow curve at the bottom bit into the sides of my heal or provided a very small contact point in the back of the shoe, giving destructive stress that the shoe did not need.
  This one just simply works right.  Long enough to give adequate leverage.  Wide enough at the bottom to spread out the force on the shoe.  Narrow enough at the top to hold it easily. A very graceful, elegantly simple design.  I liked it so much I bought three different colors.  Why not five stars?  I rarely read the five star reviews.  I have difficulty accepting that there is something that is perfect, with no room for improvement.  Possible improvement for this shoe horn?  The only thing I can think of is for them to give it away for free.