Double tapping your phone screen to wake up the device is a great feature of Lumia smartphones. But you still have to hit the power button to put your phone to sleep.
Well, with TouchandLock you don't.
It's a nifty little app that puts a tile on your Start Screen which you tap to lock your phone.
Simple and very useful.
There are a few similar apps in the Store, but this is the one we've tired and it works well.
It's free and you can get TouchandLock here:
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