Where do you store your cold wallet? A safe in your house? Also, where do you store your backup recovery phrase? Seems risky to store them both in the same place right? Fire could take both out.
Inside a safe in a bank perhaps? And inside of that safe why not another safe? I suggest having at least two places to store them, both highly secure and that you are the only one that may know about it.
Perhaps one of them should have instruction to contact your next of kin if you go missing / don't login into the service (bank perhaps) for more than 1 year... This would be handy in a sudden death scenario,but then again, you can also leave it stated in your will I suppose ...