All of the receipts you send to them are also accepted by the IRS, so if you are ever audited, just show the images of your receipts from your account.

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But unless and until Bitcoin can be used to buy a sandwich, or be accepted by your friends when you pay them back for a restaurant meal, then it is likely to remain just a playground for geeks and gamblers.

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By holding back from TV and concert appearances, the group and its management went against the industry-accepted wisdom that you can only hold fans' attention by plying them with nonstop appearances and regularly dispensed songs.

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