With so much speculation surrounding Bitcoin, its worth evaluating what you can buy and transact with in Bitcoin for regular, everyday transactions as well as some more fringe use cases.
SO WHAT WE CAN BUY WITH BITCOIN IHEARS TRAVELS BUT THERE IS OTHER PRODUCT CAN BUY IT

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It entirely depends on the country you live in. If you are from Japan or Germany, you can definitely buy a lot of things with bitcoin including some daily household items. However, in majority of the countries, you can't buy anything at all unless you convert your bitcoins to local fiat. So as you see, it depends on the legal status of bitcoin in your country.