[duren]

How else would I safely keep the private keys?

[BenjiWiebe]

Use wallet software on your own PC. I run a full node on my PC.

[duren]

Thanks, I'll look into it. My naïve opinion is that a desktop client would be less secure than Coinbase's vault. Hardware wallets are generally unavailable or inflated (Trezor and Nano S). Therefore, I assumed paper wallet was the only option.