Landlords may not allow you to paint the walls, but you can decorate them to reflect your style.
Some cool things for an apartment you can decorate your walls with are mirrors, artwork, or floating shelves. A mirror will brighten up your place as it reflects the light and makes your comfy abode seem bigger. Art can be purchased cheaply and framed, or not framed, to make a gallery wall or have one statement piece. Floating shelves can display trinkets or pictures. Window treatments are more cool things for an apartment. You can spice up the drab white walls with colorful and textured drapes and install a creative curtain rod. Area rugs also add color and dimension to a small apartment space while tying the room very nicely.