I really liked Darin's clamp method here.. I've shared it with a good many people and even had a printed image of it to make the explanation easier. Quite a few people have benefited from the idea and it seems to work VERY well for their [un]intended purpose.
Plus you can make them from trashcan scraps.
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"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
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