Born from tears of the sky and sun's laughter, I paint arches in the air, a fleeting bridge of colors you can't walk on. Catch me if you dare, but I'll vanish like a dream upon waking.

Lots of people love this, but some find it less compelling. Personally, I write this with an h in it, but this quest demands the US spelling.

I wax often, despite no threat of hair. I also become blue, though that is rare.

In your car, I'm for perfuming. While in your house, festooning. If a stay native, I never die, unless my home becomes too dry.

I can be used to write a note on the refrigerator sign or I can be used to tell you where to stand. What am I?