I just moved into a newly constructed house, and the steps from the garage were slick and caused problems for our dog entering after his walks.  I saw these stair treads on Wayfair.  Some of the reviews seemed to indicate that they worked really well for this very reason.  I love that you don't have to affix them to the stairs with staples or glue.  They are very elegant looking, despite being in the garage. They are functionally perfect for the very reason I needed them!

Pros: Don't have to affix them to the stairs.  Just set them down and they don't slip!
Cons: A little pricier than others on the market, but worth it.