right wing mouse

I just bought a new mouse as my old one stopped working all of a sudden and when I plugged it into my PC I was surprised to see it had two buttons. I don’t remember my old one having a split button—when did they start doing that I wondered. It must have been recently because as far as I know I am up-to-date with current technology and I had never used one with two buttons before. Weird eh? At first I though they had done it for people with that left-handed disability, but then when I got the packaging out of the trash and read it, it became clear that the extra button was for doing something called a “right click.” Apparently this is a good thing if you are doing things like downloading pictures from a homepage on the interweb and other stuff that it makes a shortcut for. I must tell my brother Rick because he downloads a lot of pictures and this shortcut could save him unnecessary mousing which can lead to problems. I don’t want him to damage his wrists and get carppletunnel syndrome, which can be a big deal if you don’t catch the incorrect mousing early. I think he over uses his wrist in other ways but it wouldn't be Christian of me to say how.

Anyway, has anyone found any other cool ways to use a two-button mouse?? I am all excited now about doing two finger clicks!!