Talking about cliches, here is an interesting link: http://cliche.theinfo.org/. You can copy and paste your text in it and the site would point out the common cliches within it. For now, there is no facility to paste your URL or do a full site search, but it is a good start and hopefully will get better.
Or if you would avoid them in the first place instead of checking for them, you can directly go to the link http://cliche.theinfo.org/cliches. This contains some of the common cliches.
Some other interesting sites for cliches:
http://www.westegg.com/cliche (find cliches containing a particular word)
http://www.clichesite.com/index.asp (collection of cliches from different nations)
http://www.moviecliches.com/ (Nothing to do with literature!)
http://www.saidwhat.co.uk/bizphrases.php (Business cliches and phrases)