Often there is limited storage on the internal drive of your Mac; specially if it is a laptop or older computer. There are many things that you can do to clear up some space on your internal drive. One of these to to try and relocate large files to an external drive. Video and large photo libraries are often the culprits when it comes to hogging disk space, so if you could move either or both that should clear plenty of space. Let us start with the Apple Photos or iPhoto library. Here is how...