I have multiple small fixed blades I cycle through, made by ESEE, Bark River and LT Wright.
I'm currently carrying a LT Wright Daily Carry. I carry it in my pocket. It's primary job is to open boxes and slice apples. Sometimes my small fixed blade knives are used on fish or game.
I don't train in any combatitives with a blade. I should, but as with so many things, time is essential.
I did pick up a Spyderco Street Beat with the idea of getting some training and then carrying it.