I'm glad you went out and had fun - good on your neighbours!
as well as the ideas above - I hold ice in my hand
run cold water over my hands
buy some flowers to brighten the place up
count twelve things and say their colour and take a deep breath after each one.
Play with my cats
Water my plants
Eat chocolate !!!!
(The non fattening type of course... is there a non fattening type? I only eat it for the seratonin!!!! )
Touch different sufaces to ground myself
take a long shower or bath
Curl up and try to sleep
****
*****
__________________
Its not how many times you fall down that counts 
its how many times you get back up! 
(Thanks to fenrir for my Picture 
)
When you have come to the edge of all light that you know and are about to drop off into the darkness of the unknown,
Faith is knowing One of two things will happen: There will be something solid to stand on or you will be taught to fly.
by Patrick Overton, author and poet