This is easy. But don't try it at home quite yet.

You go into a store.  You see a product you want to try, but you hesitate.  Will it work?

That's the scenario I found myself in over a fancy seed starter kit.  On vacation last year I saw a burlap bag with soil and seed and directions.  

Cute?  Home-y?  Yes.  Expensive and not sure about the results?  Also, yes.  I didn't buy.

Fast forward several months to when I saw the same product in a hometown store for 1/3 of the price.  I decided the price was worth an experiment.

And, hey, why not make it my first product review?  

Have you tried one of these?  How did it work for you?