Lately my combination has been a Ka-Bar Becker Necker lashed to the strap of my pack, and a Ka-Bar Heavy Bowie on the back of the pack. I don't like big knives on my hip when I'm carrying a pack, so I keep the bigger one on the back, since I only plan to be using it around camp anyways.

I've carried other combinations, but I generally like a knife large enough to baton with, and a smaller knife for the rest of the chores. I'll occasionally throw a folder in my pocket, too - often some sort of spyderco.

I'm hoping my combo will soon be a scrapper 5 and then maybe something a bit bigger, depending on what deals I can find. And maybe the becker necker will stay on the pack strap, 'cause I really like that little knife.