The creative way.
It looks like Opera Software is having a party as company has announced the milestone of 150 million Opera users worldwide.
If you visit Opera.com, it will display an actual inbox of Jon S. von Tetzchner, the co-founder of Opera Software.
Furthermore, visitors can actually read all the messages, for example: an invoice for Mitsubishi Colt Owners Club membership OR “We were thinking of re-doing this stunt. What do you think? http://www.opera.com/press/swim/”
Happy browsing and congratulations to Opera Software!
Not 100% browsers related, but hey, it has “Firefox” in the title, so here we go…