The three steps up to my front door are topped with black limestone slabs, and I'm beginning to be concerned about their safety (or rather the safety of anyone using them) especially in poor visibility: I'd like clearly to mark the front edge of each step with a white or other light-coloured strip. There are various commercial products available, both stick-on and screw-down: see for instance this page:
Or should I just paint a white stripe along the edge of the steps?
Many thanks,
Bert