Hi all . . . got my viv yesterday and was at Home Depot looking at ceramic tiles for substrate when I came across peel & stick laminate tiles. They were somewhat rough on the surface, meant to look and feel like real textured ceramic tile. I can just cut them to size and stick them down. Easier and also lightweight. They sell a kit that seals the little seams, too. The only drawback I can see is that they wouldn't hold heat as well as real tiles would. What do you think?