I love love love wallpaper but i just think it can be so daunting and final. Ones it's up it's up. It's such a faff to get off and if your anything like me you can love the idea of something one minute and hate it the next! However there is a solution, you may all be aware of this but i wasn't until the other day that you can purchase temporary wallpaper it's genius! Urban Outfitters online store have some really lovely ones and they are no more expensive then a normal roll of wallpaper.
These are just a few of the ones they do: