Be careful not to get your protectant of choice in your hair, and don’t forget the tops and undersides of your ears. Don’t use a moisturizer that breaks you out, or you could get acne around your hairline.

If the moisturizer isn’t sticky enough to hold the cotton, don’t panic–just apply more moisturizer over it, and forget about the cotton.

Be careful when pulling tape off. Masking tape can potentially pull out or irritate the soft, fine hair known as vellus hair that covers your body, including your face.

Many hair dye kits come with gloves to make the process easier. Don’t wear latex gloves if you’re allergic! There are plenty of latex-free alternatives available.

It’s best to keep rubbing alcohol and cotton balls handy as you color your hair. Most people have a small mess-up or two. If you get a giant blob on your neck, remove the bulk of it with a paper towel or toilet paper, then use the cotton ball and rubbing alcohol to get the last of it off.