brainwallet.org Low Entropy Generation
I used WarpWallet. I booted my computer into Linux, copied WarpWallet off my flash drive, ran it, put in my passcode (39 random hex digits that I've memorized), and I had my address. (I triple checked that the same passphrase always gave me the same private key, and all this time the computer was, of course, disconnected from the internet) I wrote down the public key on a piece of paper, then transferred all my old cold-storage bitcoin to it. https://blockchain.info/tx/13fd0f4ef557317871965f12d02e17069dc782d3dce9f2f44c4b751c3c856595