Improved my wifi signal

I'd heard that a can would increase my wifi signal, but wasn't quite convinced. 
Both antennas are about half a foot apart. I took a knife to an empty root beer can and proved to myself that this really works.

It cured the frequent loss of signal I had previously experienced, which I suspect was caused by other electric appliances.

Drink cans seem to be well suited since you simply insert the antenna into the pouring hole.  I used the pull tab of the can to secure the can to the antenna.