During mincha on Shabas, many people say psalms 111 and 112. I've seen them posted on the walls of some synagogues, in fact; one such copy that I've seen has the word "hal'lu[k]ah" appended to the end ...
I heard from somewhere that, on Shabbos, one does not say "Good Shabbos" after mincha. I am not sure whether it's in a halacha sefer somewhere (I tried looking) or just a minhag. First of all, is ...
It says in the Rambam that there is a custom not to say Tachanun at Mincha on Erev Shabbos and Yom Tov. What is the reason for this custom?
Why (in some synagogues) does the shatz (leader) put on the talis during mincha of Shabas, before "Vaani s'filasi", rather than before the start of mincha? As Gershon Gold notes in his answer, Shaare ...