With the long, dark months of winter still stretching out ahead of us and the lighter days of Spring little more than a fragile gleam on the horizon, it seemed appropriate that our science this week should focus on staying safe while we are out and about. See and be seen is the message, especially when crossing roads. We investigated which materials reflect car headlights best and which ones do very little to make us visible to drivers. Wear something light, was our main finding, and definitely avoid too much black. Bad news for some!