Get yourself out of your favorite Prada jumpsuit and into some old clothes. Even just an old T-shirt is probably enough, and throw an old towel on your lap -- or, if it's large enough, just wear it Snuggie-style -- to protect you from drips.This way you can worry more about coloring your hair and less about ruining that outfit that makes your butt look so great.
Brush your hair out and divide it into four sections. Although it's not critical as to where you put the different sections, you'll likely find it easiest if you have two at the front and two at the back. Most professionals color hair this way and there's a good reason for it: it gives you space to work on each section one at a time and see your hair better as you dye, so you're less apt to miss spots. Yay!
Mix the dye according to the instructions -- Wella offers fantastic, super easy-to-follow instructions on all their at-home hair dye kits -- and color each section, working from front to back, until all your hair is coated in dye. Massage the color in over the length of your hair and around over your scalp. Get all those dry hairs wet so you don't end up with a spotted 'do.
Leave the dye to develop on your hair while you catch up on your reading or flip on the tube for a bit.
Rinse out your hair, squeeze the water out once the water runs clear, and use the conditioning serum included in your dye kit to revitalize your hair and leave it silky, smooth and super shiny.
If your hair is quite dry, Wella also offers some terrific shine enhancing products, like the Shine Define Shampoo and the Shine Define Mask, which are especially useful after dyeing your hair.
Doing a quick strand test before dyeing your whole head can save you a lot of stress, especially if you're not an experienced dyer. Cut a small section of hair off from the underside of your hair -- carefully, not Edward Scissorhands style, OK? -- and dye just this section first to see how it turns out before dyeing the rest of your hair. At least that way you can toss this bit out and not be left with a whole head of hair in a color you hate.