What's the easiest way to automate logging into a website?

Question

There's this website I need to access about every ten minutes. And apparently it was designed in 1993, by sadists. There is no "remember me on this computer" checkbox. And if you don't interact with it for a minute or two it logs you out.

I would like to somehow implement a keystroke that will bring my browser to the foreground, open a new tab, enter my username and password, and click "Login".

It isn't that I don't want to learn AppleScript. I'd love to. I enjoy learning programming languages. I already know several.

It's just that I have many other more pressing matters and time is short and it is seems like not the greatest idea to dig into AppleScript just to deal with this one problem.

What would be the fastest, simplest way to resolve this?

Any help or advice would be greatly appreciated.

Thanks!