This is a simple explanation of how to make a wallet with the internet cut off so it's secure. There's one thing I do differently though. There's no need to download the zip file. Just save the page and it opens the same way. But, either way.

This is for bitcoin wallet. But, he uses the technique saving the page like I do. I like how he emphasizes the security measures. Watch this and apply the same thing to the ether wallet.