The one piece of equipment I've carried for 20 years is my Gerber multitool. When I was in the army, the three or four blades I carried where my issue Gollock machete and Victorinox folder plus my Kukri and Gerber Mk2 bootknife.
If I'm out in my patrol, then it's usually just the multitool and a combo axe, unless heading away camping/fishing etc...