In some countries you can register a non-vote
You are basically saying that you don't trust any of the parties at all. This seems like a good idea, but would ultimately reduce the % of people who actually voted for a winner to a very small number.
( Naked Ape call me Caitlyn, Mon 1 Mar 2010, 17:09, 2 replies, latest was 16 years ago)

If there was a 'none of the above' box
I'd vote every time. As it is I feel unable to with a clear conscience.
( Monty Boyce, My cheese game is strong, Mon 1 Mar 2010, 17:32, Reply)

It is, without a shadow of a doubt, time to start a party
and just name it "None of the Above." Think how many seats you could win on deception alone!
(LongJohnBaldry, Mon 1 Mar 2010, 17:34, Reply)

you got my vote

(bamboozled Can hear you getting fatter, Mon 1 Mar 2010, 18:03, Reply)

they do this here in Spain
"voto en blanco" it's called.

essentially you tick an empty box (I believe anyway - I'm not eligible to vote here yet, not that I'll be voting anyone in the first place)
(bamboozled Can hear you getting fatter, Mon 1 Mar 2010, 18:02, Reply)