I have to admit that it came to me a number of times how quite hard it is to be your own bank, especially if you have tens of BTC. I have a little amount myself and created a total of three copies of my seed words and I can only remember the hiding place of a single copy. I cannot remember where I kept the other two, must be somewhere in the pages of one of my books or under files of old papers. If this tiny box I'm living in right now will catch fire while I am away-- God forbid-- I will lose everything of it. And I also don't deem it safe to keep a copy in my wallet.
If my memory serves me right, I think even Andreas Antonopoulos himself ironically mentioned in an interview that he's got a copy of his seed words written on a piece of paper and kept in a bank's storage.
Having a lot of BTC and being a bank for yourself is very difficult, Must be more vigilant and pay attention to the security and confidentiality of the documents that we keep in a place that has been provided. Divide documents in 3 copies must know each place that will be used as storage, not to forget that it is very dangerous if found by someone else. instead of having to keep several copies in your own place, it is better to save in a safer bank deposit and only you open it or there is another power of attorney to open the document besides you.