Deciding on a mix

I'm currently working on a debut CD of my compositions, which can be a very tedious process. As I'm confirming mixes, I'm reminded of something I've always practiced in the past in deciding on a final mix. No matter how perfect or imperfect the mix seems at first, it's always best to wait a few days and come back to it with a fresh perspective. It always amazes me how certain aspects of a mix (that were not noticed initially) become obvious over time.