I'm a little more conservative. I store everything encrypted onto small, portable thumb drive I have the option of using biometrics or using a seed phrase to open it. If my only option is to decrypt with a phone, most will have the biometrics capability, but if the phone does not, I can access it with an alphanumeric access password. So for each password, or collection passwords, I want to access, there exists a second password for it. This is just a back up for my Microsoft cloud where I have a locked folder that allows me to access all of these passwords with just one, single password. I can quickly destroy this file if needed, or perhaps the cloud itself incurs serious damage from a hack attack or Microsoft makes a mistake or goes bankrupt (unlikely)...I can easily still access my passwords with my thumb drive on any device. The drive has an adapter for any type of phone input out there, so I'll never be limited.
For my cryptocurrency, I have everything loaded onto a single Ledger thumber drive. However, each password is a 24 word seed phrase. So in order to access what's on the thumb drive you need to be able to provide a 24 different, correctly spelled, utterly random words in correct order or you will not be able to access my the desired cryptocurrency. When I was really into it, I had at least 16 different cryptocurrencies and each was put into several different wallets (encrypted storage locales for cryptocurrencies). For each wallet there was also a seed phrase. I use to use a 2lb hammer and a set of small hand operated stamps that I used on small 2x3 pieces of 304 stainless steel which has numbers and lines laser etched to help me position everything neatly. Yes, I hand stamped all of my seed phrases onto aircraft grade stainless steel. Don't believe me? Here we go...
This way, whether it be hell or high water, fire or tsunami, I know that my seed phrases will survive just about any type of destruction and I will be able to reuse them if the internet and cryptocurrency still remain available and relevant. So if my house burns down, I'll be protected. It's even resistant to acidic corrosion, physical impact, it is able to be hunted by metal detector as a unique frequency to isolate it from garbage, it is highly rust resistant when submerged in water, extremely shock resistant (explosions and detonations), and it will typically retain its obvious, geometric shape regardless of the elemental obstacle, making it readily identifiable to the naked eye and it will produce obvious patterns for ground penetrating radar.
Sometimes stone age techniques are superior the anything else. Let me know your thoughts and feelings...
The plates shown are seed phrases for wallets that I no longer use, so don't bother trying to access the associated accounts. Honestly, I guarantee nobody on here will even consider doing so. But just saying, don't waste your time. This isn't me slipping up insofar as protecting my privacy. I'm not that stupid. However, I am sometimes very stupid. But not when it comes to online security. Go big or go home.