Ah. I already have silver reflective tape on the bike and the trailer, but I will get the lime yellow. (Maybe this is also what I need to cover myself in for my commute.) I also have two tail lights on either side of the back of my trailer, but am worried about the fact that at 4 way stops some cars wait for me (on the bike) to clear them and then start through the intersection--I can't tell if this is East Coast impatience or if they don't see the trailer, so I'm looking for a more active side lighting system.