How to Trade Bitcoin and Ether for Free on GDAX
Sign up for Coinbase here.
How to Buy Altcoins (eg. Ripple) With Poloniex and GDAX
Sign up for Poloniex here.
Transfer Bitcoin from Coinbase/GDAX to Exodus
Download Exodus wallet here.
Buy 3 water-resistant USB keys here.
(Make sure to back it up in more than one place!)