With my hit lists I always experiment with different formats and layouts of doing it. Usually because I want to waste as little paper as possible, while making them as non intimidating as possible.
Some times I just use them as you expect. One column in regular portrait orientation. Other times I use two columns in either portrait or horizontal orientation. Lately I’ve used them in portrait but divided them in four.
What is hilarious about this is that I have basically turned A5 sheets into four index cards.