More on muktzah! "Machmat mi'us" -- you can't handle because it has no purpose, because it's disgusting. When you have debris from your meal on your table, how can move it? Also: Lining up the halakhot of Shabbat with R. Shimon's approach. With an old oil lamp being the prime example of something that has no purpose on Shabbat, and would be unpleasant to handle. Plus: The last mishnah in Masekhet Shabbat - annulling vows on Shabbat, which is less than ideal, but under certain circumstances, can be done. Also: measuring the space/water of a mikveh to make sure it's large enough to be a mikveh. And - shuttering a window to prevent transfer of tumah. A couple of detail-intensive scenarios to finish off the tractate. Plus a story of measuring water in a tub in just this way, though not for the purpose of a mitzvah, just to occupy himself. Hadran alakh - please God, we will return to Masekhet Shabbat.