If you struggle with how to move and store photos and video from your devices to cloud storage, and would like to be able to access them on your tablet, phone and computer, across platforms, Good old Google has the answer.
Google photos. You may know of Google drive or Dropbox, both of which I use.
I second this, as I like to keep Google apps on my phone to keep it all together. Google Drive, Photos, Play Music, all have a fair amount of space (Drive 15GB) and Photos is unlimited at regular quality and Music has space for 50,000 songs. Drive runs a special sometimes like if you go through the new security options to verify account security, you get an extra 2GB, stuff like that. Don't forget Google Keep, I like it much better than Evernote. Oh, and Slides, Docs, PDF Reader, and Sheets are good MS Office alternatives.