Most university students I teach have part-time jobs. These girls aren't using their money to pay for school fees, though. They use it to buy new clothes and go to "estee" facial treatments, starting at 25,000 yen for five visits.

As I was inspecting my face in the mirror the other day, I realized that although I am still in my 30s, I had somehow gone from having crow's feet to having centipede feet in just two years. It was time to find out what estee was all about.

When I went for my first facial, I resisted the "discount" programs involving multiple visits. Once would be enough.