If the rss feed goes to a pages that has a nice link to get a printer friendly version that is clean. Then this method can work really well for you in most cases. You will have to know a little bit about regular expressions or of course you can do like I do and cheat and use firebug to get the link say for instance /services/printVersion.asp then let
http://www.txt2re.com/index.php3 convert it to python reg expression.
then you could use code like this...
put this at the top to allow for the use of the tempfile usage
Code:
from calibre.ptempfile import PersistentTemporaryFile
then in your recipe simply add this code block and change only the urlreg=