Recently I was reviewing some estate records I viewed several years ago at the Family History Library. A second look at the handwritten index indicated I had missed a reference to the estate. That second reference contained several names that may be crucial in my research. All because I went back and looked a second time. Is there something you can look at again on the off chance something was overlooked?
If you are curious about what I located, there's a blog post about it on the Casefile Clues blog.