“How does Santa keep track of all the fireplaces he’s visited?”/“He keeps a log book.”

A Christmas riddle is:
 
Q: How does Santa keep track of all the fireplaces he’s visited?
A: He keeps a log book.

 
The “log book” pun has been cited in print since at least December 6, 2017.
         
 
Metro (UK)
19 genuinely funny alternative Christmas cracker jokes
Andy Hill for Metro.co.uk
Wednesday 6 Dec 2017 12:00 pm
(...)
How does Santa keep track of all the fireplaces he’s visited?
He keeps a log book.
 
Twitter
Chris Moose‏
@thechrismoose
How does Santa keep track of all the fireplaces he’s visited?
He keeps a log book.
5:10 AM - 7 Dec 2017
 
Twitter
MummyHereAndThere 🎄  🎅‏
@MummyHere_There
How does Santa keep track of all the fireplaces he’s visited? He keeps a log book
12:30 PM - 7 Dec 2017 from Coventry, England
   
Twitter
Forest School Chat‏
@ForestSchChat
‘In the countdown to Christmas , I thought I would englighten Forest School chat followers with a Christmas themed joke. How does Santa keep track of all the fireplaces he’s visited? He keeps a log book’ #TemiTalks
6:42 AM - 8 Dec 2017
 
Twitter
Gem‏
@gem106fm
How does Santa keep track of all the fireplaces he’s visited?
He keeps a log book
#christmascrackerjokes Jennie x
1:31 PM - 11 Dec 2017
 
Twitter
Shit Jokes‏
@ShitJokes
How does Santa keep track of all the fireplaces he’s visited?
He keeps a log book.
11:57 AM - 18 Dec 2017