What's that one product that is completely worth your money?

What's that one product that is completely worth your money?

I guess the Matcha Tea powder that I had ordered from Amazon. I thought its expensive so I should cancel the order. But it was already out for delivery by the time. So I thought of trying it for once. And trust me its amazing! 

You can read about Matcha Tea on this website JustSayChai.com. They have stated the benefits quite well & also the history about matcha has been mentioned. Or you can read about it from Wikipedia however the content is in quite a large amount.