The Importance of Upselling

I'm a complete sucker for a sales person of any kind. You know what happened to me once? I was buying a pair of shoes. The guy went just quickly before he buy the shoes. Just have a quick look at this. He took some shoes or a display shoe, sprayed it with something and it vanished. It vanished. And then he pulled a glass of water over it. And the water just sort of trickled off. But yeah, I'm a bit of a sack of that stuff. There are some classic upselling things which really annoy me. Have you had the one when you go and buy a picture frame for something? Which is always really expensive. For some