If you love to study design magazines, but freeze when it comes to trying those ideas in your own home, then you'll warm up to this simple, step-by-step approach to home decorating. Rather than trying to tackle the whole room at once, the pros start by breaking down each room into its basic building components: floors, ceilings, walls, doors, windows, and architectural details. Determining the selections for each of those components will set the tone and character of the room. That, in turn, will dictate the style of furniture, lighting, window treatments, and accessories needed to complete the room's point of view. For specific ideas in each of these areas, check out message boards, which feature advice from design pros as well as from other homeowners. Start with the floor. Along with the ceiling, the floor represents the largest share of space in the room, although it's actually more important, since we come in direct contact with the floor. Any steps and staircases in the room should be included as well. How will the room be used? Are you looking for soft carpet so you can get down and play with the kids, or elegant parquet flooring? Once you determine the type of flooring that will work best in the space, start considering colors. Will light colors stand up to the traffic, or will dark colors show pet hair? Do you want the room to look serene and calm in cooler hues, or festive and bright in warmer tones? The ceiling should be the next thing to consider. Many ceilings are simple, neutral areas. If a large expanse of blank ceiling looks just plain boring, you can break up the space with details that complement the flooring. Ceiling light fixtures, fans, or even skylights can add interest. Don't be afraid to consider painting your ceiling. You can always paint over it! Start a shade or