"I used to work in a blanket factory, but it…

“I used to work in a blanket factory, but it folded” is a pun that was posted on the newsgroup alt.tasteless.jokes on February 23, 2001. Blankets are folded frequently.

“I used to run an origami company, but it folded” and “I used to run a pizza restaurant called Calzone, but it folded” are similar jokes.

Google Groups: alt.tasteless.jokes
Just For Pun
ur_droll
Feb 23, 2001, 2:56:31 AM
(...)
I used to work in a blanket factory, but it folded.

Googel Groups: alt.humor.jewish
Punning Along
alohacyberian
Nov 29, 2001, 6:13:21 PM
(...)
I used to work in a blanket factory, but it folded.

16 February 2002, The Post and Courier (Charleston, SC), “Bad cellular put Enron in hot water” by Elsa McDowell, pg. B1:
I used to work in a blanket factory, but it folded.

Newspapers.com
7 June 2002, The Call-Leader (Elwood, IN), “Cryptoquip,” pg. 10, col. 6:
Yesterday’s Cryptoquip: THE CREW WORKED FAITHFULLY IN THE BLANKET FACTORY, BUT UNFORTUNATELY IT FOLDED.

Google Books
Spam Revisited
Compiled by Scott Horner
Nashville, TN: Westview Publishing, Inc.
2004
Pg. 98:
I used to work in a blanket factory, but it folded.

Twitter
Nick Momrik
@nickmomrik
“I used to work in a blanket factory, but it folded.”
7:19 PM · Nov 13, 2008·Twitter Web Client

Twitter
Mike Macdonald
@mkmacd
I used to work in a blanket factory, but it folded.
10:22 AM · Aug 26, 2009·Twitter Web Client

Reddit—Cleanjokes
Posted by u/SheldonE65 September 16, 2021
I used to work in a blanket factory.
But it folded.