Both “customize” and “customise” are correct the choice depends on region.  I remember writing a product description and pausing at ...

“Occurred” is the correct spelling, while “occured” is incorrect.  I remember typing a quick message and writing “occured” without thinking. ...

“Congratulations” is the correct spelling, while “congradulations” is a common mistake. I remember once typing a message to a friend ...

“Digitize” is the correct and widely accepted spelling, while “digitalize” is less common and often avoided.  I remember writing a ...