What is the best way to store alot of photos and videos taken from my Note 10.1 2014 and galaxy s3 phone? My memory is full on my phone so I'm thinking I need some kind of external storage. Should I buy an sd card, an external hard drive, I'm guessing I'll need a usb adapter? Will it be easy like a simple drop and drag from phone/Note to this external device? I don't own a pc or laptop so I need to do it all on the Note and/or S3. I do have a basic dropbox account if that helps in getting the photos to storage. ..? Thanks for the help.