In Pictures: Swiss Army smartphone - 7 tools your phone can replace

With the right apps, cases and add-ons, your smartphone can tackle a wide and whacky range of tasks.

Just like "when all you've got is a hammer, every problem looks like a nail" (or "when your problem is a nail, every tool you've got looks like a hammer"), when you've got a smartphone, there's a good chance there's an smartphone app, case, or accessory for whatever you want to do.

Not just the easy or obvious things, like turning your smartphone into a GPS, mirror, or mini-periscope, or providing damage protection. I'm talking about a wide, even seriously whacky range of tasks.

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