I used to copy the javascript from bitaddress.org and run it with my computer disconnected from the internet. Well, that's what I used to do anyway, but this guy says no don't: https://bitcoin.stackexchange.com/questions/22115/how-to-download-bitaddress-org-to-use-offline So what would I do now? Same thing, paper wallet using the bitaddress.org javascript code on a disconnected computer. Transact the bitcoin from whatever app you have on your phone to the QR address on the paper wallet. Put the paper in the safe.
Thanks. For some reason paper seems safer to me.