I had a chance to fish for a couple hours last night after work, so of COURSE I took it!
I fly-fished a local public pond from about 5:45pm-7:45pm. First I tried a white beadhead woolly bugger, thinking it would get down where the fish might be in this cold water, plus it would be highly visible at night.
Nothing. Not even a hit.
Switched to an unweighted woolly worm in a darker color. Fished fairly shallow. I don't know how a fish could see that fly at night in the water, I couldn't see it at arms length from my face! But it worked! I ended up C&R'ing 18 crappies (8"-9" range...nothing big) and 2 largemouth bass (up to 14").
What a good night!