(Melting ice.)
Does It Have to Be Done for Immediate Use? How Should One Make Salt Water on Shabbos and Yom Tov for the Seder on...
הכנה ליום אחר (Preparations for a Weekday): Washing Dishes on Shabbos for Sunday. Releasing a Halachic Vow (הַתָּרַת נְדָרִים);
a few more important pointers in reference to the halachas of trees;