What to bring with you on that day on the flats… it is an eternal question (not really, but that makes it sound grandiose). Deneki Outdoors has some thoughts on this question and they put together a list here.
One thing I’d add to this list is a pair of ceramic nippers. The nippers you have on your trout vest/pack are likely going to rust with amazing speed. Ceramic and plastic, as of this writing, do not rust, and so are a good thing to have along.