Halacha Yomi(m) 94, 95, 96-

1) One may not wash clothes on Tisha B'av, even if it's his only clothing (Yalkut Yosef Moadim, page 559).

2) One may not drink or get benefit from wine of a idolater (Mishneh Torah, Sefer Kedusha, Hilchot Ma'achalot Asurot 11:7).

3) According to B'nei Ashkenaz, they light the candles of Shabbat then say the B'racha (Mapah, Orah Haim 263:5-Kaf HaHayim, Mahzik Bracha, Ben Ish Hai, and Kaf HaHayim). Minhag Sephardim is to light before (Kaf HaHayim Palagi, Maran Shulhan Aruch Orah Haim 263:5).