Renters often complain about ugly, dingy floors, but updating the floors can be an expensive proposition for a landlord. Cover up the mess with cool area rugs - as an extra bonus, they muffle sound.
Do your research and think things through! I am very impulsive when it comes to design, and I may see a photo online or in a magazine and think YES! I want that in my home! But then I have to remember that I have limitations – like the fact that I have 6 cats and what I bring into my home needs to be cat-friendly, or that my house is only 12 ft wide and 926 sq ft so I have to make sure items are of suitable scale.