Hanging up a Child's Swing, Cutting off Part of a Candle to Fit into the Candelabra on Yom Tov, Cutting Part of the Wick...
using whipped cream on Shabbos; opening a lid of a bottle that's very tight; tissue boxes;
ממצוא חפציך (Mimtzo Cheftzecha): Why Do We Need Both 'Recognizable' and כוונה (Kavana)?;