Personally, I find the best way to keep it fresh is to cut from the center and push the two halves together. I usually use this technique when eating something like banana bread, as I don’t eat too much fresh baked regular bread. The main downside is that you’re left with two ends of a loaf, which people often dislike, rather than only having one end at a time.
Related to this is the technique of placing the cut end of the loaf down on the cutting board to limit airflow, so it’ll dry out more slowly. The downside there is that bread tends to be less stable when stood on end.
With both techniques, the exterior does end up drying out a bit, but it’s certainly more resistant (and more acceptable) than the interior drying out.