"IKEA is my go-to place for bedding, toys, and lamps," says Pat Christodoulou of Stage and Sell. This designer—who specializes in staging a home to increase buyer interest—accessorized this particular children's room for under $100 using bright, budget-friendly accents like the polka-dotted DRÖMLAND duvet and a plush frog. "We did The Frog who Became a Prince Theme, complete with dolls and book. Everyone was enchanted when they entered this room." Available at IKEA; $29.99 for twin-sized duvet and pillowcase.