If you've never tried the Uniball Jetstream RT retractable rollerball pen, this is the time to do it. The company is giving away a half-million FREE pens to anyone who asks. Unfortunately, the offer is only open to those living in the U.S., but if you have a mate in the States, maybe he can get one for you.
To receive your free pen, you have to go to the Uniball site and provide your name, email address and mailing address. The usual rules apply: Only one per household, and the pens won't be sent to PO boxes. The pen should arrive in 3-6 weeks, according to Uniball.
The Jetstream itself is a pleasure to write with, using Uni Super Ink that provides the typical smooth flow of a gel pen while also drying rapidly to avoid smudging. Many people seem to prefer the Uniball Signo 207 for overall reliability, but to me, the Jetstreams just feel like they roll much more fluidly.
You better hurry, though. The Uniball offer is open until April 30 or 500,000 pens, whichever comes first. Also, only the first 10,000 people each day will receive pens, so make sure you log in early to submit your request.