Wallpaper boasting an eye-catching pattern can be used one or two sheets at a time. You can also affix these sheets horizontally.
A particularly interesting approach is to affix a couple of sheets onto the walls vertically and then allowing them to run across the ceiling to the opposite wall and down from there. This creates the effect of two separate rooms.
Another place where interesting patterns and effects can be tested is a wall next to stairs, which usually extends through two storeys. Such high surfaces can be used to create spectacular, eye-catching surfaces.
Stripes are very effective in visually changing the look of a room. Long and narrow rooms becomes even longer if their walls are covered with wallpaper that has horizontal lines. In such rooms it would perhaps be better to use vertical lines. The same applies to rooms with low ceilings.