A quick and easy way to ground yourself, is to focus on your root chakra, while simultaneously going out of body and merging your consciousness with that of the Earth.
After doing so, you can take this even further and merge your consciousness with that of the black hole at the center of our Galaxy. Doing so will bring about an energetic shift, much like a sponge or wash cloth being rung out by the energy of the black hole.
I did this today while using Cinnamon essential oil (yummy!) and it was really powerful!