I have found that focusing my senses on something tactile (a stone, a feather, a swatch of fabric anything that 'feels') helps to bring me down and center me when I am at times restless, or have the urge to dash out and do something. In my case it's a stone I found on a beach with a shell stuck to it. I have every part of it memorized.

I practise a few yoga moves that I learned too.

These calm me down.