If there is a merchant that does not accept bitcoin, there are still ways to use your digital cash to purchase the items you are interested in. Just use a bitcoin debit card. These cards help bridge the Bitcoin world with the world of legacy finance. Using them is simple, you can either buy bitcoin with your debit card or load a debit card with bitcoin to spend anywhere that accepts credit cards. With this bitcoin debit card, you can now essentially buy anything with bitcoin as any establishment that accepts credit or debit cards would accept your bitcoin debit card as well. The merchant gets paid in their own currency by the debit company and the charge will be deducted from your bitcoin balance.
There are several debit cards to choose from. Some cards can only be issued to certain countries, and all have varying fees, so be sure to read up on all the options to choose the best card for you. Two well-known choices in the U.S. are BitPay and Shift cards. 
Good one
The only problem are the high transaction fees by using a bitcoin card. Hope we will see soon some improvements in this area, so nothing will stop the bitcoin revolution.
Greetings from Germany