MB3 146b: Wiping Water off Tablecloths on Shabbos (320:18)

Sponges with handles on Shabbos (cont'd).

Plugging a barrel containing water with a cloth has an additional issue of libun besides the possible squeezing issue.

Removing liquid from a tablecloth using a utensil must be done without pressing down.

Squeezing out one's hair is asur midrabbanan.