Tax Free Shopping
In case you are a non EU citizen and you buy goods of at least 2000 CZK in value, than you have the right of returning of the value added tax.
All you have to do is to get the stamp of the tax-free shop on your form (they will give you the form at the shop) and apply within 30 days after presenting the confirmation of customs office, stating that you exited the EU. For more info visit Global Refund.