I don't have cable tv anymore, so I don't really see many commercials. However, when watching shows on Hulu I'll see a few.
The "feedthepig.org" has been known to have commercials promoting people to start saving. I really like their newest round of commercials.
Basically, the ads are making fun of people who complain about not having money yet they're in the middle of spending money on something unnecessary.
Here's a link to one of them on YouTube:
https://m.youtube.com/watch?v=g3oDjTMy3TM