How much time is needed before or after shabbos to say it is "שכר שבת בהבלעה" (shabbos earnings included with weekday earnings).
Removing Dried Skin from a Sunburn, Eczema Around a Cut, Acne, etc., and Removing Glue from One's Arm;
(Melting ice.) various situations to be careful with; more about crushing ice in a liquid with one's hands;