Other than subscribing or copy and pasting, you have a number of options:
You could bookmark it in your browser: Ctrl-D works on most browsers.
Or on the left of the screen below the latest posts you can see a share button. That's mainly designed for sharing the page you like with your friends, but you can also use it to share with just yourself, e.g. create reminders on Facebook or in your email.
If you get really advanced you can use the same button to set up shared bookmarks on StumbleUpon, Digg or Delicious, which are services specifically designed to allow that.