Yup, I carry a bar with me when cutting. I think it's called a "pinch" bar. It helps in moving logs around and if you can't get to the bottom of the cut, it helps to break it apart if you need a little something extra.
Mine is just a bar about 5' long that's small diameter round on the top, and tapers up about half way into a square and the flattens out into a wedge on the end. They make them in different configurations, but that's the one that I like the best for cutting wood.
This one is shaped a little different than my favorite one, but I have one of these that works as well.
I got something like that, it's 4' long, octagonal, and has a slight bend on the end of it.