10 Pieces of Useful Information You'd Already Know If You Weren't So Dumb

1.

Source

2.

Source

3. 

Source

4. 

Source

5. 

Source

6. 

Source

7. 

Source

8. 

Source

9. 

Source

10. 

Source

from CollegeHumor: Pictures http://ift.tt/2s1Y9xw