Do I need "Continue Shopping" button on the shopping cart?

I did read a lot about shopping cart page this week and everywhere people insist to say:

  • Add continue buying button on your basket to reduce the abandonment.
  • The button "continue shopping" is an absolutely required button.
  • Bla Bla Bla...

BUT I always think before clicking on this button when I'm buying: Where this button will take me? I think that is always a surprise because is too generic. And I never click there, I prefer to navigate using the browser back button to back the product page or make a new search or use the menu.

Am I crazy?

Why not:

  • Back to the last product page button
  • Go home and continue shopping
  • A warning saying: Please, use the search bar or our amazing and very organized menu to continue buying
  • None os this and just show related and frequently bought together products

What's the best alternative? Why?