Can't stand the scratches on your furniture? Then try this neat little trick by green living blog Re-Nest. 

Tackle scratches on furniture with a medium-dark or darker stain by simply dipping a cotton swab in used coffee grounds. Use it to cover the scratches and let the grounds sit on the scratches for 10 minutes before wiping it away gently.  For lighter stain wood, replace using coffee grounds with walnuts instead, although it's not recommended for those with peanut allergies. 

Presto-chango, it's like those scratches never happened! And it's definitely cheaper than buying new furniture.