Somehow I managed to end up with duplicate photos. Started eliminating them manually (long, tedious process). Then suddenly they managed to proliferate again!! Today I started looking at apps that are suppose to help, like PowerPhotos and Gemini 2. Besides the hurdle that these cost, I did read somewhere that I would want something that would not only cull what I have in Photos in my computer but also get rid of the same duplicates in iCloud. And maybe that I have in backup on TimeMachine? Would really love suggestions on how to get rid of the duplicates!