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The simple way to use credit/debit cards and yet have gold backing is to just do things the old-fashioned way:
1) Buy and HODL gold.
2) Use ordinary credit/debit cards just as you always have.
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If, for whatever reason, you want gold OUT of your own personal control (the only reason I could see is that your home would not be secure) there are other options. These include local storage (safety deposit box, Brinks & similar, etc.) and overseas storage.
Note that I do NOT recommend other people storing YOUR gold.
Hodl is not a gold its a kind of digital altcoin..
I heard that bitgold is scam and some of them are saying that bitgold are legit.. Im realy confused but i never trusted bitgold.. because they need your real information..
My understanding of the term "HODL" is that it is a fun way of spelling "hold", as in we who own it "hold" Bitcoin. That is what I meant when I wrote "HODL".
Bitgold may or may not be a scam, I don't know. I did see that they ponied up for an ad in a mining (as in metals mining, not BTC) magazine I recently bought.
But, why should I (with my own circumstances) take the chance that it is a scam? I will just HODL my own physical gold, and use credit cards when I want.