Doesn't matter how old you are, you often need to write, edit or check some text, either you are student or a businessman, or even a prime minister :)
Recently I had to write an essay for my university. Like every student I started to do it the day before the deadline, and of course I didn't have enough time(I'm sure you understand me))) So I had to find an excellent essay in the Internet. Surfing through I found lot of useful information and came up with a great essay.
Then I decided to check the "originality" of this work. Again, surfing I found
It's easy and free, and has a nice interface ;))
I think I'm gonna use it every time to check my works.
By the way, you may congratulate may, I've had an "A" for that essay.)