The Pope has it but he does not use it. Your father has it but your mother uses it. Nuns do not need it. Your lady friend's husband has it and she uses it. What is it?
You have me today, Tomorrow you'll have more;
As your time passes, I'm not easy to store;
I don't take up space, But I'm only in one place;
I am what you saw, But not what you see. What am I?