Methods before Members or Members before Methods?

In a header file, which do you define/declare first. Do you list all your variables before the methods (also known as functions), or do you do it the other way around?

I always thought that you put the variables first. That was the way I was taught in school. Now I hear that that is wrong and you have to do it the other way. I am told you should list the methods first.

I know this is all just asthetic. But there must be a set accepted way to do this. What is it? I mean, if you were looking at some sample/example C++ code, how would you expect to see the header files to be written?