I'm way into wall decals lately. This one, from Ferm Living, is just so cute. They are made of vinyl and stick onto the wall like a sticker. If you get tired of it, it's easily removed. They look just like paint but are oh-so-much easier to deal with. There are many available on Etsy as well. I have one wall in my upstairs landing that's just begging for a decal. Right now, I have a lovely original oil painting by Sherri Marranca there, but I think a bright white decal of some sort would really brighten up the space.