GPG

To have a secure secret key is invaluable. It'll allow anyone around you to be absolutely sure it is you they are dealing with, online. It'll allow you to securely access sensitive resources with a relative sense of security.

High level overview

• set up airgapped device, follow instructions here: https://github.com/lrvick/airgap
• follow instructions here: https://github.com/lrvick/security-token-docs/blob/master/Use_Cases/GPG/Advanced_Setup.md#prepare-offline-storage-directory
• backup master to an offline storage and put it in a safe, alternatively have a triplesec encrypted backup on an online storage (24 word security passphrase is advised)
• put subkeys on various yubikeys/ledgers