No, I’m pretty good about my keys. I keep my house and car keys on the same key ring, and when I worked, I kept the keys to the building and to my office on the same ring, too.
I don’t know if it’s better to do it that way, but for me it works because I always have my car keys handy and don’t leave the house without them, and so therefore I always have all my keys and it’s not like anything is missing without me realizing it.