Add tiles under each level of stairs

Tiles are very durable 

Create patterns and accent the colors in your space

Create a stair runner out of your favorite rugs

Combine rugs together or trim one rug to the  width of your stairs

Paint your stairs with bright, fun colors

Alternate each stair base with a different color in a color scheme

Create an ombre effect by painting each plank with a different shade of one color, start with the darker shade then add white as  you move up or down the stairs