Do you need to clean your bathtub?

I find it interesting that of all the things to clean in a house, a bathtub is often one of the most neglected. The shower/bathtub is used multiple times a day in most households.

I think we forget about it because we can pull the curtain closed and it’s not seen by visitors.

What’s dirty or ugly in your life that needs to be cleaned? What is easier to pull the curtain over because others won’t know if it’s clean or not?