Sorting Through Amateur Porn

I'm trying to save some hard drive space, both on my computer and my flash drives. I'm sorting through pictures I've collected from various sources. One of my favorite amateurs is known as KK, and I've got nearly 2000 pictures of her. What I do is simply use Windows Explorer and arrange by size so that I scroll through and pictures that are the same in the same (or close to the same) size. I will still miss wherever a picture has been re-sized for some reason, but it helps a lot.

Does anyone know of a way to do this better and/or easier?

BONUS: Here's a few pics of KK