Step back and ask yourself: Do you really need to contact print everything? I find after a while the negatives make sense to me and I am getting a better idea of how they'll look when enlarged so I can decide which to bother enlarging and which to think about for a moment about what I could do next time to make that shot printable rather than discardable. I put negatives in the enlarger with the easel and a focus sheet to check for sharpness, I focus using the focus aid and then look at the whole picture for sharpness to again, decide if I should bother to print it or not.