I have a small torch to hand,
Nothing to do with evacuating the aircraft though, It comes in very useful if and when
small items disappear into the under-seat darkness.

Another thing is that I have my flight details in a durable label firmly attached to my case, I've seen too many airline tags
get detached. No one in baggage handling is going to track someone by their destination address, not immediately at
least. Flight details give the luggage a better chance of being retagged and joining you on the aircraft.