Focusing on small meditations to alleviate "mental buzzing" can be affective, but sometimes it still pulls us away from the "here & now" (which is the only place we are ever truly at, and thus is a place we need to actively be a part of!)
As I found my mind buzzing again, though not as much as before, I pulled my awareness "into" the pose I was doing at the moment. For example, I got to Viparita Karani (my second to last pose) and focused on the sensation of my legs against the wall, of the blood feeling as if it was receeding like a tide, my head on the pillow, and my arms gently relaxed at my sides. Pulling one's awareness into what one is doing to really "feel" the moment brings awareness and a greater sense of peace. The key is not to interfere, but to observe. As I moved to a variation of Savasana, which is a restorative pose, I noticed my heart rate was much quicker than it normally was for this posture. I considered the fact that I had just gotten up and moved across the room from one asana to the next and instead of remaining alarmed at my "doing the pose wrong" I chose to merely observe and allow it pass. I took a few extra seconds in the pose facing both directions and found myself and my heart rate back to where it usually was at the end of the pose.
Control is a dangerous thing and often inhibits us from really "being" in the moment. We wish things to be a certain way because of expectations rather than allowing things to just be. This control causes a struggle with us against the world, and we go from being and existing to pulling and pushing. This causes mental as well as physical strain on our minds and bodies and depletes our energy stores. So next time you feel flustered or frustrated that things are not going as planned. Or you find yourself endlessly running through thoughts and lists as you perform some task take a mental step backwards from yourself. See what you are doing mentally versus physically and let them re-integrate so that you are focusing on the task at hand and being present.