Today, the very same side hustle, called Invalid.jp, brings in more than $500,000 per year .
A popular video of Invalid.jp's light-up stickers, posted in 2022, led to $38,000 in sales in a single day, Siu says.
"A lot of times, people I talk to trying to start businesses only try for four or five months and [quit when] it doesn't work," Siu tells CNBC Make It.
You can figure out what's trending by looking on Amazon or TikTok, or you can film and post videos and see if it goes viral.
When you're doing a side hustle, you're going to be working 24/7.
Persons:
Siu, Jason Siu, they've, He's, TikTok, he's, I've, Warren Buffett
Organizations:
University of Hawaii, CNBC
Locations:
Manoa, Honolulu ., AskMakeIt@cnbc.com