I said about dividing whole key into parts and memorizing 1st letter. I have also found some unique ideas too. I want to add another idea. Educate your life partner/family members about crypto. Tell them how to use priv key, how to withdraw fund from wallet to exchange and how to do basic trading. Thus you will have educated helper and they may use your btc in your absense. Obviously you have to chose most trusted members of your family.
Thanks for the tip. This is definitely a must, in order to preserve my crypto funds against death. In case I don't manage to survive a natural disaster, a relative could easily access the crypto funds in my absence. It'll hard for me teach most of my family members about crypto and Blockchain technology (as they're not tech-savvy at all), but I'll do my best at it. Instead of a normal crypto wallet, I think that a multi-sig wallet would be best for this situation. Other family members will still be able to unlock the crypto funds if they don't manage to find my crypto keys (or seed). It's always best to have a "Plan B" just in case, to preserve your crypto funds for future generations.
Best way is multiple offline backups, paperwallets, .dat files saved on usb, and stored in different secure locations. If disaster happens in one area you will be fine because you have your backups elsewhere. Whatever you do, make sure you make at least one backup, too many stories of lost crypto out there.
Exactly. Redundancy is key towards protecting one's important data from undesired events in life. The cheapest way would be to make several digital copies of your crypto private keys encrypted across several cloud services. I'd use Google Drive, OneDrive, and even Dropbox to store multiple copies of my utmost sensitive crypto private keys. In the event of a natural disaster (like an earthquake), I can remain confident that my funds will still be safe even after being disconnected from the Internet for a couple of years from now.
The last resort would be to store copies of crypto keys in a physical form. I've toppled with something called "ColdTi" which is a cryptocurrency seed wallet that's made out of pure titanium. By punching (or engraving) your crypto seed on the card, you can rest assured that your funds will be safe for a very long time. This is a cheaper solution to the "CryptoSteel" cold storage wallet that's also waterproof, fireproof, and shockproof. With a cost of $20.99 at Amazon (
click here), you can't go wrong with using the "ColdTi" to protect yourself against a natural disaster.