Really dumb Nexus/Android/Photos question here, but..

..I'll be using the Nexus 5 very soon (delivery en route), and I've been trying to figure out a proper way to manage the photos I take on my Android for a very long time now. I don't necessarily mind having limited memory on my phone with no expandable memory since it curtails all the unnecessary apps I don't really need (Angry Birds/Angry Birds Rio/Angry Birds Star get the idea).

The one question I have is, how do you guys manage photos on your phone? Do you back up immediately to Google+ and delete the originals off the phone, or just keep going until you start running out of space? What method have fellow shutterbugs on phones with no expandable memory taken?

Thanks in advance!