Anyone else thought, while watching the website of a big company, "I could do it better"?

Of course, sometimes i have even made an unofficial version.

I think that way of almost every website or stand alone information system I see companies use.
But there also is the "man, you could do it way faster if you got an information system" thing.
There's this fast food store in college, where people shouts each other all the time and write on paper every damn thing they sell... So sad to see