July 16th, 2008 is the 17th annual Ride to Work Day. You can read more about it
here. The site doesn't seem very informative, so I don't know if it's a US only (if so, sorry SG) or international event.
I'll probably ride my Transalp, which I just got running for the first time in four years.
Anybody else?
EDIT: I just found
this site, which seems to indicate that it's also Ride to Work Day in the UK.
EDIT 2: It's also National Motorcycle Week
EDIT 3: They are claiming that commuting by motorcycle saves time. This is not the case for me as I tend to take the scenic route.