...about the Anglican Rite in the old BCPs that we continuing churchpeople use is the Decalogue and the Gloria "post communion". At my parish, we say the decalogue once a month to fulfill the rubric. I like saying them because they form the basis of western law and the Judeo-Christian ethic, so connecting with them, and forming those words with my lips, makes me feel like I am connecting with a very primitive tradition. Plus, so many people do not know the Ten Commandments - even devout Christians! Thus, inserting them in the liturgy once in a while is a good way to teach them and absrob them into our hearts.
The post-communion Gloria was an innovation by Cranmer. Traditionally, it is supposed to be at the beginning of the liturgy. I think it fits well in either place, as R. Mammanna observed once in a paper he wrote on the subject. Personally, I have never gotten used to the Gloria being in its original place. I like it, and am used to it, at the end of mass. I see it as that last great act of thanksgiving after communicating. It is a refreshing way to end the liturgy. I always thought that masses without the Gloria put on the end were so anti-climactic. But that's just my opinion.