A plaid doesn't have to be strict. Bibelotte's Plaid Toffee Wallpaper proves it with a checkered pattern in warm ochre and sand, interspersed with old pink areas and fine lines in pink and burgundy. The hand-drawn shapes and woven texture give the print depth and a handcrafted feel, as if a soft fabric is hanging on the wall instead of wallpaper.
Plaid Toffee is warm enough for a child's room and mature enough for the rest of the house. Hang a few wall shelves with dishes or toys, and you instantly have a wall full of character, in the play area, the bedroom, or even the kitchen. Prefer to start with a smaller pattern? Then the Plaid Toffee Wallpaper Border of the same design is a nice step up. The other way around works too: border in one room, full wallpaper in the other, and everything matches perfectly.