Generate an Ethereum Wallet
myetherwallet.com is a free service to generate a wallet to hold the cryptocurrency Ethereum.
A cryptocurrency is a digital asset designed to work as a medium of exchange using cryptography to secure the transactions and to control the creation of additional units of the currency.
Ethereum is an open-source, public, blockchain-based distributed computing platform featuring smart contract functionality. It provides a decentralized Turing-complete virtual machine, the Ethereum Virtual Machine, which can execute scripts using an international network of public nodes.
Create the wallet, download and store offline on a USB.
You can use this service to generate a strong password: http://passwordsgenerator.net