Android: RSS readers work best when they bring the information to you, rather than forcing you to hunt it down. To that end, Corgi for Feedly makes life easy by putting your news on your lock screen.
The app uses Feedly's syncing service to plug in to your subscriptions, so you'll only get news from the sites you want. You can scroll through headlines or even read entire articles before unlocking your phone. That means you can indulge your impulsive reading habit without disabling your lock screen, as far too many of us are prone to do.