Wormwood is the only substance that actually repels wasps and hornets!
I'm extremely allergic to the little winged monsters, so I open the bottle when I sit on my balcony, in order to keep them at bay.  I occasionally dab a drop on each wrist, to keep the scent moving with me as needed.  It reminds me of patchouli, which I wore in my (slightly) miss-spent youth.
Rating: 5 stars