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Over three-and-a-half years, I’ve had the privilege of trying to solve your tech and gadget problems. I’ll be moving on to other adventures soon. For my last column, I wanted to share a few tips that readers of The Fixer—a very inventive group—have shared with me.

Turning Your iPhone Into A Magnifier

After I ran a column about gadgets for reading small type, Larry Winans emailed me about a trick he uses to turn his iPhone or iPad into a digital magnifier: Open the Camera app, aim your device at the offending tiny text,…