Spencer,
as usual,you are right. This new "man" around my house must belong to someone. If he continues to hang around, I'll definitely do as you have suggested. I would LOVE to have another cat of my own, but this one looks like he probably belongs to someone, but is one of those guys that has been banished to the outdoors. Mimi will NOT tolerate another cat indoors. We've tried that before with an orphaned kitten and had to find a new home for it. There was another cat who came here for several months, who we named Thomas (aka Tom Cat). He was a big, husky tabby that after Thanksgiving never came back. I feel guilty not opening my door to them, but with Honey, Lilly and Mimi, it is almost impossible. I had made the mistake of putting trashbags out late in the evening and someone found them. Probably my new friend, "Butter". I will definitely be a little more proactive with him if he is still here tomorrow.
Thanks for the good advice. I know you have been through this problem often.