There are so many things you can do to make a boring room look more interesting. Plain rooms crave shape and dimension, and it's easy to achieve them. If you feel like paint is all been there, done that, why not try a textured wallcovering? Wallpaper is back with a bang, and there are many great options, from natural weaves like grasscloth and bamboo to graphic florals and bold stripes. Wallpapering an entire room can add up, so if you want to minimize your splurge, opt to do your accent wall in wallpaper while painting the rest of the walls a complementary shade. If the thought of wallpaper still makes you shudder, opt for fabric on the walls instead.
Art is another way to liven up a room and add some dimension. You can either invest in one larger piece that becomes a focal point, or a series of smaller prints that work together in creating visual interest. Don't have a big budget for art? Find a yard of interesting fabric and stretch it over a frame -- voila! Instant art at the fraction of the price of a painting.
Woodwork is another way to liven up your room, especially if you want to add details specific to a particular architectural style. Wainscoting is a popular material, and most types can be installed by a DIYer with a saw and a drill who has solid skills. Beadboard is often found in Cottage and English country style homes, while recessed flat panels stay true to the Mission and Arts and Crafts periods. Molding comes in every possible size and style and can transform a room instantly. Crown molding adds an elegant touch to a blah room, and a chair rail makes a great transition from the lower half of a wall with wainscoting to an upper painted or papered wall.
Of course, no room would be complete without an effective lighting scheme. When executed properly, lighting adds drama and dimension to a room. By layering different kinds of lights and introducing varying degrees of light into a room, this helps to create visual interest. If you just have direct sources, like table and floor lamps, it can make a room feel a little shadowy and somber. But if you have an evenly lit room with no layers that create contrast, the room will just seem flat and drab. The key is to mix it up. Overhead lighting, combined with accent lights (such as table lamps or sconces), mixed in with some task lighting, will provide enough light sources to create a mood for any occasion. And of course, natural light is the best of all.