Why? If you get points for every purchase, why not charge everything
you can? That's what I do.

This does assume you have the discipline to pay off your cards every month.

Or get a charge card that gives points. But I'm still not in favour of
generating piles of paper and statement entries for what are in essence
petty cash transactions.

My wife got a free trip to Japan last years using the points from
those petty transactions. For that I can deal with a few slips of paper.

R's,
John