Torque Wrenches

How should you store them? I've got a Planet X £30 offering and used it to tighten the disc bolts up today and before I put it away I wound the tension off. Right or wrong or doesn't matter?
I've added a signature to prove it is still possible.
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Cool dry place reduces the chance of corrosion on the sprung steel components which are always susceptible.
DON'T use them as a ratchet handle with it set to zero
Before tightening something expensive after it hasn't been used for a while, check it still clicks on something cheap (or a vise)!
This is what Norbar say.
http://www.norbar.com/Portals/0/Wind%20 ... 20Blog.pdf
Would have been nice if they could have tested over a longer term - I have torque wrenches that get used less than yearly!
I guess the most important recommendation from the report to extract for an irregular user like myself is -
If it is convenient to wind your torque wrench back to its minimum scale setting then you should do so but never wind it below the minimum marking on the scale