1.   The battens should be screwed loosely into position and then checked to see if they present a flat vertical surface.

2.   The gadget can be attached to any vertical surface.

3.   The gadget can be attached to any vertical or near vertical surface.

4.   As for vertical surfaces, such as pickets and other fencing, semitransparent stain can also be used on them.

5.   Even the solid stain can be used on vertical surfaces such as pickets.

6.   Felt or pliable rubber strips are better for running up and down or across a vertical surface such as around the edges of a loose window frame.

7.   However, you can apply heavily pigmented stains on vertical surfaces, such as handrail balusters.

8.   If the solid stain is not peeling from the pickets and other vertical surfaces, leave it alone.

9.   It is anchored more deeply, creating a more solid vertical surface.

10.   Ken Hakuta has become famous for the Wacky Wall Walker, those slime-covered plastic creatures that ooze down vertical surfaces.