When you woke up this morning, did you realize it was National Cat Day? According to Netscape Home & Living, there are 88.3 million cats in the United States, compared to 74.8 million dogs. Miranda Lambert, Taylor Swift, James Franco and Martha Stewart all have cats. I have 6 rescue cats in my house and 2 are pictured here. After more than a decade of celebrating National Cat Day, cats are more popular than ever.