When spraying your house, it is a good rule of thumb to spray in the direction of the grain of the material. So if you have siding that runs horizontal, you want to spray in a horizontal style. Also, when you go to spray, the gun should be approximately 12" from the material that you are spraying. Do not pull the handle to spray with your hand still. This will spray a lot of paint in one spot causing it to drip. So have your hand moving when you go to depress the handle. This will give you an even look to your paint.
Will the color look harsh on me? If you choose a hair color that is natural looking, it will not look harsh on you. For example: If you are young, and want to enhance your own hair color. Your stylist will choose a color very similar to what you already have. Younger people can get away with more drastic changes in their hair color because they generally have vibrant skin tones. Although, if a young person chooses a black color for instance, and their hair color is not naturally black, this can sometimes be very harsh looking on them also. Like wise, when young people with very dark hair, try to go all over blonde, it can be a too harsh for the same reasons.
If you decide to do your own body work discuss it with the paint shop first. They'll probably have recommendations on the type of primer you use. Some brands will be more compatible with their primers or color coats. The rule of thumb is to stay within the same brand of paint, both for prep and color. Even the cheapest paint shops typically use a brand name on their intermediate and higher paint jobs. Find out what it is and use the same brand as your primer coat. This will ensure you don't create adhesion problems for yourself down the road.
Hair colors come in categories of : Temporary, demi permanent, semi permanent, permanent. Each color line has recommendations on the categories and of uses of their particular types of hair colors. Each line has color enhancers, color glosses and so on. I recommend you have your stylist or colorist educate you on the types she or he will be using on your hair and why. This will help you when choosing shampoos and conditions that will help maintain your hair color between coloring services.
Knock down texture is basically a orange peel that is sprayed on and allowed to "set-up" for a minute or two then gently "knocked down" by running a 6" drywall knife over it, "knocking down" the surface of the texture. Although knock down is a flattened version of orange peel, I suggest you do not use a spray can of orange peel, the knock down comes in its own spray can and the results are much better, again experiment before spraying it on the wall. However, If ever you apply any of the textures to the wall and are not satisfied with the results, wash the texture off immediately before it dries, then allow the wall to dry and try it again. Once you have the texture applied to your liking and you have allowed it to dry, you may want to paint the patches a couple of time before painting the entire wall, especially for walls where the paint to be applied will have some sheen. Multiple coats on these areas will make them blend in, unnoticeable, with the rest of the wall. You will know if the patches need more coats of paint, because the patch/texture will have absorbed the paint causing the spot to look duller than the rest of the existing wall.
If red is the color of fire and yellow is the color of sun, then orange color, which originates from the blend of these two colors, combines both warmth and light in it. Light muted orange accent will give your interior cosiness and warmth, especially in the room with windows facing north. Bright orange color in the interior on the other hand is more of a claim for originality.
Purple is the most contradicting color, to start at least because it consists of two antagonists: hot red and cold blue, ice and fire. It is the most mysterious color. It was the last color to emerge in art. Purple has a lot of other shades that are less rich and more lightened and muted: starting from light-lilac and going up to ashy gray-purple, which can give the interior a certain style and exquisiteness.