Originally Posted by Javed
Yes there is. All you need to do is single click on every single post's karma button to see if you have previously given karma to that post. If you have it will say "You cannot give Reputation to the same post twice."
I never said it wouldn't be time consuming.
But that is not the way that works.
You can't give the same user Karma, twice IN A ROW.
You are advised to spread it around
I have given Karma to the same persons over time.