Answer:
Railroad Crossing, look out for the cars. Can you spell that, without any R's?
From house to house I go, sometimes narrow, sometimes wide. Whether there's rain or snow, I always stay outside. What am I?
I can be any color you can imagine. You see me in everyday life. Look around, you can probably see some of me right now. What am I?
I am brown and sticky
When I come in from sea to shore twenty paces you'll see No less no more.
Keep doing me to avoid lens dryness