I have suggestions, specific to protecting from negative energy at the work place. I work in a cubicle, on the computer most of the day. Not in any particular order:
I visualize my work area surrounded by beautiful roses, with large protective thorns
![Big Smile [:D]](http://www.aypsite.com/plus-forum/Smileys/akyhne/icon_smile_big.gif)
I listen to meditative music at a very low level. Others more than a few feet away can't hear the music, but it soothes me and helps increase my powers of perception, concentration, and meditative absorption at a subtle level.
I accept others negative energy as a personal challenge. I do not (usually) feed into it or react strongly against it, I just observe it and my reaction, breathe peace into my body, relax.
Practice pranayama for a few seconds to change the focus of my energy.
I try to Reiki my work area every day. When I get stressed out I go to the bathroom and perform Reiki healing on myself for a couple of minutes, usually just my hand and neck. I can activate the energy quickly so it doesn't take long.
Surround myself with a few subtle spiritual objects - nothing too obvious: a crystal, some dried rose petals, a couple of pictures.
Namaste,
Phaedris