My stair treads are now covered with carpet which is quite old and dirty. I want to remove the carpet, but in so doing the wood below will expose and I get to find some way to resurface it. I cannot afford hardwood since it is too expensive. I don't like laminate floor as well since it will be slippery. What other alternatives are available? Is is practical to just paint the treads up and what kind of paint should I use? Thanks!