Amazon - Order anything. They kick a few bucks my way.
SoFi - All-in-one way to bank and invest. Including Bitcoin.
US Mobile - Total customization of a wireless plan. Only use 100 minutes of talk time, but lots of data? No problem.
Mint Mobile - Wireless plans as low as $15! Using T-Mobile's towers.
Private Internet Access - VPN's keep you from getting hacked on Wifi at coffee shops or anywhere.