procmail, mutt and several email accounts

[rod]

I use:
mutt
procmail and I have written a few recipes for this

I've got several email accounts.  
I have one particular  mail directory that procmail uses as the final
mail destination for more than one of these email addresses....
<cut to the chase>  
I get multiple copies of the same  emails in one directory.  

Q1) How do I keep the second copy of an email from going into said
directory?

Q2) how do I find and delete identical copies that are 
already in a directory? 

Q3) What has the attendance at the Feb. meeting location been like?

later
rod holcomb