I know that many of you have very large Photos libraries. If your libraries are like mine, you probably have lots of duplicates or lots of very similar photos. How many times have you taken three photos in row thinking you’ll only keep the best but you keep them all?
A $10 program called PhotoSweeper can help. It has settings that let you decide how similar two photos should be to be considered duplicates. You can read a review of it here. This is a nice app for decluttering your photo library and freeing up disk space.