In the UK 20 x 0.41 = 8.20.
Here in the US 20 x 0.41 = 11; in the UPS store at any rate.
I went to buy a book of stamps, twenty of them at 41c each. For those whose multiplication skills are limited, the price is even printed on the book. Neither the simple arithmetic, nor this clearly marked price prevented the clerk telling me it was $11.00. I queried the price, he confirmed, I left the stamps on the counter and went to the nearby Safeway which charged me $8.20 for the same product.
Except in philately circles, I have never heard of stores charging above face value for stamps.
