Getting the the Switch's screen clean to prep for putting on the screen protector was easy, getting the screen protector clean before putting it on the Switch was the hard part. The screen protector film just kept attracting dust and in the end I'm left with dust under screen protector despite taking precautions. I recommend taking off 3 first along with 1. Then following the normal steps to put the screen protector on.For its price I'm surprised it doesn't come with an alcohol prep pad and small microfiber cloth to clean the screen beforehand when most of the cheap phone screen protectors I buy do come with one.