A perennial classic: striped wallpaper. We like Marimekko's Korsi Stripe, which is available with blue, red, black, yellow, or green stripes on a white background.

Above: Marimekko Korsi Stripe Wallpaper in blue and white; $149 per roll (27 inches wide and 396 inches long) at All Modern.

Above: Marimekko Korsi Stripe Wallpaper in red and white; $149 per roll (27 inches wide and 396 inches long) at All Modern.

Above: Marimekko Korsi Stripe Wallpaper in black and white; $149 per roll (27 inches wide and 396 inches long) at All Modern.