I am thinking about putting carpet stair treads on each tread. I believe these can be held in place with double sided tape.

I also see on the web that at Lowes, HD. and Walmart these treads run about $15 each. I am a bit surprised they cost that much and wonder if I am even looking at the right item.

Suggesting please.

A cheap way to do it that I am considering: Walmart has small, rubber-backed kitchen carpets on sale for $4 in the housewares area. I'm thinking of buying 16 and cutting them with a carpet knife and then placing the cut edge so that it butts to the riser.

I put some indoor/outdoor carpet strips on the four steps up to our outside deck a year ago. There I took a small carpet strip (I don't know what there are intended for) I purchased from Home Depot, cut them in half and got from that two pieces nice for a stair tread, the cut edge was put against the riser and the other side was finished and has rounded corners. As this is "just" the deck, I used a staple gun to attach them. In this case the treads were installed to help an older dog we have who suffered a stroke and has limited strength in his rear legs, and needs the traction to make the climb. This was not expensive, then too there are only 4 steps.

I slipped on the same steps that are the subject of this post a number of years ago. I was heading down stairs in stocking feet. I have since never gone down the stairs unless I am wearing shoes or slippers with traction. It was a slip by my wife that prompted my post. She was wearing socks, not shoes.