I usually back up my phone pictures with Dropbox... but let my subscription lapse a few months ago. Just upgraded it again though, and the phone is uploading all the pics and videos from the last few months!
I had an old phone with a cracked screen from a few years ago that wasn't backed up, and then the kids hid it somewhere just before we moved. Bee just found it though and we'll back that up as well. Thank goodness, because the old phone had all my pictures and videos of Charlie as a baby!
After that, I should be fully backed up! I should've made sure I was fully backed up all along...
Do you have all of your pictures fully backed up?