Yuck! No one likes dirty grout. Even with brand new, beautiful tile stickers, your surface is going to look sub-par if the grout between each of the stickers is stained and worn out.For every problem, of course, there is a solution! In this case, it’s a magical elixir called “grout refresh.” Grout refresh products are readily available at most hardware stores and shouldn’t cost you too much. Another option is to paint the edges of the tiles and the grout with white tile paint. This solution is permanent, but it’ll definitely make your stickers pop.