Re: head lamps?
Petzal, black diamond, and the energizer, are the best bets for me. Red light is gooood.
I carry one every time I go out. One doesn't always know when we'll be staying late.
Several times I've left a small bike strobe going on the truck dash to help finding it later.
Generally I only carry one full size headlight, (but 3 fresh aaa's are stashed in the vest).
Also carry one key-chain light as a backup.
I also practice walking around in the dark a lot. But not in cougar country.
They tend to approach from behind, so keep rear looking radar on.
Don't want to be today's special.
"Standing in a stream fishing isn't reality avoidance,
more like a shortcut to reality."