Hi, my home is located on a hill. Halfway along my front garden path from the road to my front door the level of my path changes and you have to go up a small step. Unfortunately when people visit my home they don't always notice the step and end up tripping up it, sometimes hurting themselves. It's a block paved path and it's hard to see this step which is only a few inches higher than the rest of the path. I was thinking of maybe putting tape or possibly paint along the edge of this step so people are more aware of it. Does anybody know of a tape or paint for outdoor use (preferably a glow in the dark type so people can also see it at night). Thanks.