OOM: Fluxx is also a family favorite. Way ahead of you there.
Yeshivaguy: Rav Moshe, I believe, (in the 8th Chelek, for whatever that’s worth to you) says that it’s okay if they’re not interlocking. I feel like the Shmiras Shabbos is Mattir also. And you make an interesting point. Then again, I never used to write down the score when I would play. We’d either just remember or put a placemark in a dictionary on the page number.