Helvetica

Companies that use Helvetica font.

3M (Post-it notes, Scotch tape)
American Airlines
American Apparel
AT&T
Energizer batteries
Greyhound Lines
Jeep
Lufthansa
Microsoft
National Car Rental
Panasonic
Target Corporation
Apple - Mac OS X (sometimes) and iPhone and newer iPods
New York City's Metropolitan Transit Authority
Canada (the country)

NB. I've changed all the fonts in the blog not to Helvetica, but to Arial, which is indistinguishable to non-specialists according to Wikipedia.

Also, music.
Jesu @ myspace-"Conqueror" &
Battles @ myspace-"Atlas"