However, I've frequently found that brownies can be complicated to cut. If you cut them too soon, you don't get that beautiful square that you're going for. Wait too late, sometimes they can be hard to get out of the pan and they STILL end up not being the picture perfect brownies you want. Until...
The plastic knife. I keep one in my silverware drawer just for the purpose of cutting brownies. They are cheap and work just as good as any of those expensive "brownie cutters" out there. Just be sure that if you do get brownie on the knife to wipe it clean before you make another cut. You will get beautiful brownies the simple way.
Now that you've finished reading this post, go make yourself (or someone you know) some brownies!