My main form of grounding is to open my Root Chakra. Note- my root is from my feet.
Ideally, I stand in the grass, soil, sand, etc with my shoes off and open my Chakra, feeling my own roots press down into the Earth and intertwine with her energy.
Tonight, CotE had their Full Moon ceremony. It was conducted in a small grass field along a Greenway outside of a local park. Right before calling quarters, I took off my shoes and let myself sink in. During the lovely meditation about the Moon woman offering a piece of comfort to us in our hands, my left palm grew warm and tingly.
Grounding in the best way led to a strong visualization and a successful Moon meditation.