I used to carry a leatherman wave, but that was so big and bulky. I downsized to a leatherman juice, but even that got annoying to carry after a while.
Now I carry a Gerber Dime. I hardly know it's there, but when I need a knife or a pair of pliers it's almost always enough. If it's not enough, then I'm fine to go find something bigger.
https://www.gerbergear.com/Multi-Tools/Butterfly-Opening/Dim...