Share a common English mistake

[kmus]

Please do as the title suggest.
I start:

"it's" is different than "its", but one or the other is frequently misspelled.

e.g.

1- It's time to go for prayer. ----- "it's" is the abbreviation of "it is".
2- The airplane fuel is stored in its wings. ---- "its" is a possessive pronoun (or adj) that refers to the airplane.