knives, how long a blade should I carry?

Question

what size of knife should I carry to not make peoples eyebrows raise? what manufacturers would you suggest?

Answer 1

For backpacking I use a small razor blade to open packages. Trail Design Ultralight Knife works just fine although it sometimes poke my fingers when reaching for it in my pocket.

Sometimes I carry a slightly bigger folding knife. What I usually miss the most is a good spreading knife for cheese / Nutella.