Sefer Ha’mitzvos Ha’Katzar (The concise book of mitzvos) By the Chofetz Chaim
This book lists the Torah mitzvos that can be observed today
Second Section – the Negative Commandments
2. It is a negative commandment not to have chametz (unleavened bread) in a Jew’s possession during the seven days of Passover
As it states in Shemos (Exodus) 13:7, “You shall not see chametz… for seven days.”
This applies in all places and at all times, for men and for women.
4. Be kind to yourself. Speaking badly even about yourself is unethical.
הלכות שמירת הלשון 