Why did Santa's elves start a book club at the North Pole?

Because they heard it was a novel way to meet new people and get some elf-help!

Why did Santa always check his watch during gift delivery?

He didn't want to sleigh the schedule.

Why did Santa's elves start a petition at the North Pole?

Because they wanted to clause for better working conditions

What do you call a present that arrives after Christmas?

A past present.