A. A backslash should bring together and complement all the elements in your kitchen. Come prepared: Know your countertop material and bring a sample. Bring a cabinet and floor sample as well, if possible. (A high quality photo will help, in lieu of that.)
Narrow down your preference between natural stone and ceramic. Identify your “feel good” colors; decide if pattern is important or perhaps monochromatic textures work for you. A good designer/showroom salesperson will be able to eliminate many of the overwhelming options that are open to you.