Why did the Creature from the Black Lagoon go to the post office?

Because it wanted to send a scaled-up package

Why did the skeleton go to the party alone?

He had no body to go with.

Why did the Cyclops go to the optometrist?

Because it had a vision problem

Why did the goblin go to the career counselor?

Because it wanted to find a job that was a good fit for its skill set and didn't involve hiding under bridges all day.