Difficulty: Moderately Easy
Step1
Survey the room the bay window is in. There is a major decorating difference between how you might want to decorate the window in your bedroom versus a dining or living room.
Step2
Call on construction if necessary. If it's in a kitchen, consider making it a nook with the right construction or having dining chairs set into the wall. For bedrooms, consider making it a vanity or even a desk area.
Step3
Make it a seat. Surely one of the most popular decorating ideas for a bay window is having an upholstered seat with throw pillows put into the space. If the window has a nice view, feel free to add a seat for reading or afternoon people-watching.
Step4
Keep it simple if you're not sure you want to do construction or change it later. Playing off the feel of the room, decorate it with figurines, framed photographs, lamps, or other small collectible pieces.
Step5
Add something themed or mechanic for more elaborate displays. An electric waterfall found at various department stores or other novelty item can look great in the window amongst other key items, especially in a living room. Also try postcards on stands to depict movie paraphernalia for family rooms. For dining areas display china and for children's rooms display dolls, model trucks, or even small canvas paintings made by the children themselves.
Step6
Give your treasured plant a new home. If you have a beautiful plant that you've had near another window in your old place or somewhere else in the house, give it the benefit of sunlight and a dramatic display.
Step7
Make it practical by putting something you may actually use in the space. For instance, a fruit holder in a kitchen will ensure that the window is noticed and the constant movement will cut back on dusting. Putting candles in a relaxing room, like a bathroom, will also have the same effect.
How to Decorate a Bay Window
Novice 
