Putting up new wallpaper tends to take one to two days, depending on the size of the area, whether old paper needs to be removed, and if there is any damage to walls that needs to be smoothed over or fixed.

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.

Your peel-and-stick wallpaper can fall off for multiple reasons, including high humidity levels, extreme temperature changes, poor installation, and even the wall surface. Textured walls can prevent the adhesive from fully sticking to the wall, making it more likely for the wallpaper to peel off. Low-quality wallpapers with weaker adhesives are also more likely to fall off prematurely.

There can be too much of a good thing when it comes to accent walls, so avoid creating one in every room in your house. Some rooms, like bathrooms and kitchens, don’t naturally lend themselves to accent walls, so it’s best to skip them there. Of course, your home should reflect your own sense of style, so if accent walls in multiple rooms appeal to you, there’s no hard-and-fast rule forbidding it.