Choose a secure offline device
Generate a new wallet address offline
Create the corresponding private key offline
Verify the wallet generator source before use
Disconnect from the internet before generating keys
Print the wallet using a trusted printer
Use plain paper and high-quality ink
Include the public address and private key
Add QR codes for both keys if desired
Make sure the keys are clearly readable
Store the printed wallet in a safe place
Make backup copies and keep them separate
Avoid saving the private key digitally
Test the wallet with a small amount first
Sweep the funds to a new wallet when needed