Note private and public key on paper, save it at a USB stick and never store it at your computer when it's online.
Paper is degradable, USB sticks are unreliable as they can become unreadable over long periods of time and an offline computer particularly used for Cryptocurrency should not be used online EVER unless you fully wipe the disk and destroy the RAM or clear it if it is even possible.
MEW offline is even more safe compared to hardware wallet like Ledger or Trezor. At MEW offline, you are creating your private keys yourself and have full control about creating it. Nobody knows which person at Ledger created your private key and if he has noted your private key. Also, when sending a transaction you need to connect Ledger to your online device, if you re-use addresses and a hacker has connected before, you would need to generate completely new address.
For the regular user, MEW offline is riskier than a Ledger or Trezor. I honestly advise every body to use a Hardware Wallet before moving on to more advanced ways of Coin storage.
Also, when sending a transaction you need to connect Ledger to your online device, if you re-use addresses and a hacker has connected before, you would need to generate completely new address.
What in the world are you even talking about here?
MEW paper wallet is real, encrypted Ethereum original code!
This is getting even more confusing.
You need only to make sure to save your keys offline on paper at a private location, where it's safe.
I thought I was supposed to also store it on an unreliable USB stick?
Please, people. Stop giving people advice on how to store their Cryptocurrency if you have no idea what you are talking about. Some people may take this for granted and mess up their methods later on.
If you are new. Just use a simple storage method such as a Trezor. No need to move on to advanced methods, you will likely mess up. Learn the very basics about Ethereum and Cryptocurrencies first. Slowly progress afterward.