password re-use is not a good thing (everyone agrees on that) but with the growing number of passwords that people have to remember its almost inevitable that it will happen.

I tend to reuse a couple of passwords on various sites around the net, but keep unique ones for sensitive things like bank logins, server logins, paypal, ebay (basically anywhere that could impact me in a serious way)

the places where my passwords get re-used are places that can have little or no impact (forum's etc) where the worst somebody could do is find out my email address, telephone number etc, as a company director that information (and a lot more) is already in the public domain so the only additional risk is that somebody could post as me on several different websites (including this one)