When checking a field for No Duplicates, it would be great if there were a check box that would say 'By Date'. When the check box is enabled, it would check for not just a duplicate of that particular field, but also would check against the entry date in the entries. It therefore would not let a second entry for billy@myemail.com on 12/14/2011, if there was already an entry there for that email and date combination.
Thanks
