Last night I tried the 'foolproof' RC's of looking at your nose with one eye closed, reading, blocking your nose and breathing.

All of them failed, except for the blocking of my nose.

This is obviously a testament to how everyone is different - but I would expect certain RC's to be more reliable than others.

And thats what this poll is about - what RC's are most effective and foolproof for you? Then we total it up and see what it says