Free carpet samples and gorilla tape will get you a new carpet
Stairway makeover reveal! Boring builder's grade carpeted stairs get a custom wood makeover with ebony handrails for only $150!
D.I.Y. Carpet Stain Removal Guide
Staircase Remodel Totally going to do this. Plan on ripping carpet and doing the real deal anyway so if this works and saves me a boat load of money....bonus!!
Cheap carpet squares painted & duct taped together for an outdoor rug
Mohawk Kingsport Frieze Carpet 12 Ft Wide
rugs for runners on stairs | Consider to try braided rug stair treads | Rugs to Fame
14 Remarkable Designer Stair Treads Photograph Ideas Regular carper installed on stairs might be the cheapest way to go plus you would have a full color choice.
Sensory: Use soft foam tiles for a sensory room/area floor! The faux-wood can be more calming than loud colors and is also more "adult-looking" for a sensory room teens and adults will be using. http://www.foamtiles.com/tiles/38-soft-wood-tiles.html
DIY Area Rug using duct tape and carpet sample squares