You shouldn’t need extra adhesive for peel-and-stick backsplash tile. The adhesive on the back of the tile sheets should do the trick. However, if you experience issues with the tile peeling or falling off, make sure the wall you’re working on isn’t textured, as that can prevent the materials from properly adhering.

If you need a stronger magnetic surface, or you need to use a different type of paint in the room (like waterproof paint in a damp basement), there are other accessible options. You could fit a steel panel over the wall, try magnetic wallpaper, or apply chalk paint instead. 

If you want an inexpensive shortcut, hang a pinboard or chalkboard on your wall. These removable options are ideal if you’re a renter who can’t repaint or plan to move in the near future.

White walls are considered a classic and timeless look and will most likely always be in style. A white wall easily blends into any type of home decor style which makes it a suitable option for most homeowners. Another appealing quality about white walls is that if it's not a color someone is going for, the color is easy to paint over.

The average cost to install or hang wallpaper is around $575 per room or project, with typical prices ranging from $200 to $1,500. Costs can be higher for custom or luxury products. Since project size varies, it's often helpful to estimate labor costs per square foot, which generally fall between $1 and $7, with an average of $4 per square foot. The total cost depends on several factors, including the quality and type of wallpaper, the size and type of the room, and whether old wallpaper must be removed first. Opting for less expensive materials like peel-and-stick wallpaper or choosing to do the installation yourself can lower the overall cost. For the most accurate estimate, it is best to have a professional inspect the space and provide a quote.