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Lesson 15 by uselessknowledge

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education · @uselessknowledge ·
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Lesson 15
Todays lesson is a very useless lesson on sales.
![JB-Thursblog-Useless-Knowledge-1280x768.jpg](https://steemitimages.com/DQmUkYF2jh13HASvKMsoLfjDeQUmRvc9dumKyW9Eo9153o2/JB-Thursblog-Useless-Knowledge-1280x768.jpg)
[Source](JoeyBonifacio.com)

### Did you know that the first product to have a bar code was Wrigley’s gum.
<br>

If you want to learn more useless knowledge don't forget to enroll to the University of Uselessness. **FOLLOW**

If you have already joined the University of Uselesseness don't forget to pay your fees! **UPVOTE**
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