What can I do to modernize my living room without having to put in a lot of decorations?

If you have found anything great, it would be to use a modern minimalist wall design. Keep the wall simple, rather than overwhelming with a lot of decorations, opt for clean lines, neutral colors, and one focal point like a piece of artwork or textured panels and wooden slats. This method will provide an open, uncluttered room with some visual interest. Good lighting can also help to make the wall beautiful, without resorting to additional decorations.